Linus Torvalds [Sat, 25 Jun 2016 01:52:31 +0000 (18:52 -0700)]
Merge tag 'for-linus' of git://git./linux/kernel/git/dledford/rdma
Pull rdma fixes from Doug Ledford:
"This is the second batch of queued up rdma patches for this rc cycle.
There isn't anything really major in here. It's passed 0day,
linux-next, and local testing across a wide variety of hardware.
There are still a few known issues to be tracked down, but this should
amount to the vast majority of the rdma RC fixes.
Round two of 4.7 rc fixes:
- A couple minor fixes to the rdma core
- Multiple minor fixes to hfi1
- Multiple minor fixes to mlx4/mlx4
- A few minor fixes to i40iw"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (31 commits)
IB/srpt: Reduce QP buffer size
i40iw: Enable level-1 PBL for fast memory registration
i40iw: Return correct max_fast_reg_page_list_len
i40iw: Correct status check on i40iw_get_pble
i40iw: Correct CQ arming
IB/rdmavt: Correct qp_priv_alloc() return value test
IB/hfi1: Don't zero out qp->s_ack_queue in rvt_reset_qp
IB/hfi1: Fix deadlock with txreq allocation slow path
IB/mlx4: Prevent cross page boundary allocation
IB/mlx4: Fix memory leak if QP creation failed
IB/mlx4: Verify port number in flow steering create flow
IB/mlx4: Fix error flow when sending mads under SRIOV
IB/mlx4: Fix the SQ size of an RC QP
IB/mlx5: Fix wrong naming of port_rcv_data counter
IB/mlx5: Fix post send fence logic
IB/uverbs: Initialize ib_qp_init_attr with zeros
IB/core: Fix false search of the IB_SA_WELL_KNOWN_GUID
IB/core: Fix RoCE v1 multicast join logic issue
IB/core: Fix no default GIDs when netdevice reregisters
IB/hfi1: Send a pkey change event on driver pkey update
...
Linus Torvalds [Sat, 25 Jun 2016 01:43:58 +0000 (18:43 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jikos/hid
Pull HID fix from Jiri Kosina:
"hiddev ioctl() validation fix from Scott Bauer"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
HID: hiddev: validate num_values for HIDIOCGUSAGES, HIDIOCSUSAGES commands
Linus Torvalds [Sat, 25 Jun 2016 01:36:15 +0000 (18:36 -0700)]
Merge tag 'hwmon-for-linus-v4.7-rc5' of git://git./linux/kernel/git/groeck/linux-staging
Pull hwmon fix from Guenter Roeck:
"Improve fan type detection for dell-smm to prevent kernel hang"
* tag 'hwmon-for-linus-v4.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (dell-smm) Cache fan_type() calls and change fan detection
Linus Torvalds [Sat, 25 Jun 2016 01:29:55 +0000 (18:29 -0700)]
Merge tag 'acpi-4.7-rc5' of git://git./linux/kernel/git/rafael/linux-pm
Pull ACPI fix from Rafael Wysocki:
"Stable-candidate fix for a deadlock in ACPICA introduced during the
4.5 development cycle by a commit attempting to improve the handling
of AML code that doesn't belong to any namespace objects in a given
definition block (Lv Zheng)"
* tag 'acpi-4.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPICA: Namespace: Fix deadlock triggered by MLC support in dynamic table loading
Linus Torvalds [Sat, 25 Jun 2016 01:03:22 +0000 (18:03 -0700)]
Merge tag 'pm-4.7-rc5' of git://git./linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"Fix for a latent cpufreq driver bug uncovered by a recent ACPICA
change and several fixes for the devfreq framework, including one fix
for an issue introduced recently.
Specifics:
- Fix a latent initialization issue in the pcc-cpufreq driver
(incorrect initial value of a structure field) that has been
uncovered by a recent ACPICA commit (Mike Galbraith).
- Add a missing notification in an update_devfreq() error code path
forgotten by a recent devfreq commit (Chanwoo Choi).
- Fix devfreq device frequency initialization (Lukasz Luba).
- Fix an incorrect IS_ERR() check in the devfreq framework discovered
by the Smatch checker (Dan Carpenter).
- Drop two excessive put_device() calls from the devfreq framework
(MyungJoo Ham, Cai Zhiyong).
- Fix a possible memory leak in the devfreq framework and drop an
unnecessary kfree() invocation from it (MyungJoo Ham)"
* tag 'pm-4.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM / devfreq: Send the DEVFREQ_POSTCHANGE notification when target() is failed
cpufreq: pcc-cpufreq: Fix doorbell.access_width
PM / devfreq: fix initialization of current frequency in last status
PM / devfreq: exynos-nocp: Remove incorrect IS_ERR() check
PM / devfreq: remove double put_device
PM / devfreq: fix double call put_device
PM / devfreq: fix duplicated kfree on devfreq pointer
PM / devfreq: devm_kzalloc to have dev pointer more precisely
Linus Torvalds [Sat, 25 Jun 2016 00:57:37 +0000 (17:57 -0700)]
Merge tag 'for-linus-4.7b-rc4-tag' of git://git./linux/kernel/git/xen/tip
Pull xen bug fixes from David Vrabel:
- fix x86 PV dom0 crash during early boot on some hardware
- fix two pciback bugs affects certain devices
- fix potential overflow when clearing page tables in x86 PV
* tag 'for-linus-4.7b-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen-pciback: return proper values during BAR sizing
x86/xen: avoid m2p lookup when setting early page table entries
xen/pciback: Fix conf_space read/write overlap check.
x86/xen: fix upper bound of pmd loop in xen_cleanhighmap()
xen/balloon: Fix declared-but-not-defined warning
Linus Torvalds [Sat, 25 Jun 2016 00:51:14 +0000 (17:51 -0700)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"Here are a few more arm64 fixes, but things do finally appear to be
slowing down. The main fix is avoiding hibernation in a previously
unanticipated situation where we have CPUs parked in the kernel, but
it's all good stuff.
- Fix icache/dcache sync for anonymous pages under migration
- Correct the ASID limit check
- Fix parallel builds of Image and Image.gz
- Refuse to hibernate when we have CPUs that we can't offline"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: hibernate: Don't hibernate on systems with stuck CPUs
arm64: smp: Add function to determine if cpus are stuck in the kernel
arm64: mm: remove page_mapping check in __sync_icache_dcache
arm64: fix boot image dependencies to not generate invalid images
arm64: update ASID limit
Linus Torvalds [Sat, 25 Jun 2016 00:22:27 +0000 (17:22 -0700)]
Merge tag 'nfsd-4.7-2' of git://linux-nfs.org/~bfields/linux
Pull nfsd bugfixes from Bruce Fields:
"Fix missing server-side permission checks on setting NFS ACLs"
* tag 'nfsd-4.7-2' of git://linux-nfs.org/~bfields/linux:
nfsd: check permissions when setting ACLs
posix_acl: Add set_posix_acl
Linus Torvalds [Sat, 25 Jun 2016 00:07:33 +0000 (17:07 -0700)]
fix up initial thread stack pointer vs thread_info confusion
The INIT_TASK() initializer was similarly confused about the stack vs
thread_info allocation that the allocators had, and that were fixed in
commit
b235beea9e99 ("Clarify naming of thread info/stack allocators").
The task ->stack pointer only incidentally ends up having the same value
as the thread_info, and in fact that will change.
So fix the initial task struct initializer to point to 'init_stack'
instead of 'init_thread_info', and make sure the ia64 definition for
that exists.
This actually makes the ia64 tsk->stack pointer be sensible for the
initial task, but not for any other task. As mentioned in commit
b235beea9e99, that whole pointer isn't actually used on ia64, since
task_stack_page() there just points to the (single) allocation.
All the other architectures seem to have copied the 'init_stack'
definition, even if it tended to be generally unusued.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 24 Jun 2016 23:55:53 +0000 (16:55 -0700)]
x86: fix up a few misc stack pointer vs thread_info confusions
As the actual pointer value is the same for the thread stack allocation
and the thread_info, code that confused the two worked fine, but will
break when the thread info is moved away from the stack allocation. It
also looks very confusing.
For example, the kprobe code wanted to know the current top of stack.
To do that, it used this:
(unsigned long)current_thread_info() + THREAD_SIZE
which did indeed give the correct value. But it's not only a fairly
nonsensical expression, it's also rather complex, especially since we
actually have this:
static inline unsigned long current_top_of_stack(void)
which not only gives us the value we are interested in, but happens to
be how "current_thread_info()" is currently defined as:
(struct thread_info *)(current_top_of_stack() - THREAD_SIZE);
so using current_thread_info() to figure out the top of the stack really
is a very round-about thing to do.
The other cases are just simpler confusion about task_thread_info() vs
task_stack_page(), which currently return the same pointer - but if you
want the stack page, you really should be using the latter one.
And there was one entirely unused assignment of the current stack to a
thread_info pointer.
All cleaned up to make more sense today, and make it easier to move the
thread_info away from the stack in the future.
No semantic changes.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 24 Jun 2016 22:09:37 +0000 (15:09 -0700)]
Clarify naming of thread info/stack allocators
We've had the thread info allocated together with the thread stack for
most architectures for a long time (since the thread_info was split off
from the task struct), but that is about to change.
But the patches that move the thread info to be off-stack (and a part of
the task struct instead) made it clear how confused the allocator and
freeing functions are.
Because the common case was that we share an allocation with the thread
stack and the thread_info, the two pointers were identical. That
identity then meant that we would have things like
ti = alloc_thread_info_node(tsk, node);
...
tsk->stack = ti;
which certainly _worked_ (since stack and thread_info have the same
value), but is rather confusing: why are we assigning a thread_info to
the stack? And if we move the thread_info away, the "confusing" code
just gets to be entirely bogus.
So remove all this confusion, and make it clear that we are doing the
stack allocation by renaming and clarifying the function names to be
about the stack. The fact that the thread_info then shares the
allocation is an implementation detail, and not really about the
allocation itself.
This is a pure renaming and type fix: we pass in the same pointer, it's
just that we clarify what the pointer means.
The ia64 code that actually only has one single allocation (for all of
task_struct, thread_info and kernel thread stack) now looks a bit odd,
but since "tsk->stack" is actually not even used there, that oddity
doesn't matter. It would be a separate thing to clean that up, I
intentionally left the ia64 changes as a pure brute-force renaming and
type change.
Acked-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Rafael J. Wysocki [Fri, 24 Jun 2016 21:37:23 +0000 (23:37 +0200)]
Merge branches 'pm-devfreq-fixes' and 'pm-cpufreq-fixes'
* pm-devfreq-fixes:
PM / devfreq: Send the DEVFREQ_POSTCHANGE notification when target() is failed
PM / devfreq: fix initialization of current frequency in last status
PM / devfreq: exynos-nocp: Remove incorrect IS_ERR() check
PM / devfreq: remove double put_device
PM / devfreq: fix double call put_device
PM / devfreq: fix duplicated kfree on devfreq pointer
PM / devfreq: devm_kzalloc to have dev pointer more precisely
* pm-cpufreq-fixes:
cpufreq: pcc-cpufreq: Fix doorbell.access_width
Rafael J. Wysocki [Fri, 24 Jun 2016 21:36:20 +0000 (23:36 +0200)]
Merge branch 'acpica-fixes'
* acpica-fixes:
ACPICA: Namespace: Fix deadlock triggered by MLC support in dynamic table loading
Ben Hutchings [Wed, 22 Jun 2016 18:43:35 +0000 (19:43 +0100)]
nfsd: check permissions when setting ACLs
Use set_posix_acl, which includes proper permission checks, instead of
calling ->set_acl directly. Without this anyone may be able to grant
themselves permissions to a file by setting the ACL.
Lock the inode to make the new checks atomic with respect to set_acl.
(Also, nfsd was the only caller of set_acl not locking the inode, so I
suspect this may fix other races.)
This also simplifies the code, and ensures our ACLs are checked by
posix_acl_valid.
The permission checks and the inode locking were lost with commit
4ac7249e, which changed nfsd to use the set_acl inode operation directly
instead of going through xattr handlers.
Reported-by: David Sinquin <david@sinquin.eu>
[agreunba@redhat.com: use set_posix_acl]
Fixes:
4ac7249e
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: stable@vger.kernel.org
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Andreas Gruenbacher [Wed, 22 Jun 2016 21:57:25 +0000 (23:57 +0200)]
posix_acl: Add set_posix_acl
Factor out part of posix_acl_xattr_set into a common function that takes
a posix_acl, which nfsd can also call.
The prototype already exists in include/linux/posix_acl.h.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Cc: stable@vger.kernel.org
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Jan Beulich [Fri, 24 Jun 2016 09:13:34 +0000 (03:13 -0600)]
xen-pciback: return proper values during BAR sizing
Reads following writes with all address bits set to 1 should return all
changeable address bits as one, not the BAR size (nor, as was the case
for the upper half of 64-bit BARs, the high half of the region's end
address). Presumably this didn't cause any problems so far because
consumers use the value to calculate the size (usually via val & -val),
and do nothing else with it.
But also consider the exception here: Unimplemented BARs should always
return all zeroes.
And finally, the check for whether to return the sizing address on read
for the ROM BAR should ignore all non-address bits, not just the ROM
Enable one.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Scott Bauer [Thu, 23 Jun 2016 14:59:47 +0000 (08:59 -0600)]
HID: hiddev: validate num_values for HIDIOCGUSAGES, HIDIOCSUSAGES commands
This patch validates the num_values parameter from userland during the
HIDIOCGUSAGES and HIDIOCSUSAGES commands. Previously, if the report id was set
to HID_REPORT_ID_UNKNOWN, we would fail to validate the num_values parameter
leading to a heap overflow.
Cc: stable@vger.kernel.org
Signed-off-by: Scott Bauer <sbauer@plzdonthack.me>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Linus Torvalds [Fri, 24 Jun 2016 05:48:48 +0000 (22:48 -0700)]
Merge tag 'upstream-4.7-rc5' of git://git.infradead.org/linux-ubifs
Pull UBI/UBIFS fixes from Richard Weinberger:
"This contains fixes for two critical bugs in UBI and UBIFS:
- fix the possibility of losing data upon a power cut when UBI tries
to recover from a write error
- fix page migration on UBIFS. It turned out that the default page
migration function is not suitable for UBIFS"
* tag 'upstream-4.7-rc5' of git://git.infradead.org/linux-ubifs:
UBIFS: Implement ->migratepage()
mm: Export migrate_page_move_mapping and migrate_page_copy
ubi: Make recover_peb power cut aware
gpio: make library immune to error pointers
gpio: make sure gpiod_to_irq() returns negative on NULL desc
gpio: 104-idi-48: Fix missing spin_lock_init for ack_lock
Linus Torvalds [Fri, 24 Jun 2016 04:35:12 +0000 (21:35 -0700)]
Merge tag 'drm-fixes-for-v4.7-rc5' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"This is the drm fixes tree for 4.7-rc5.
It's a bit larger than normal, due to fixes for production AMD Polaris
GPUs. We only merged support for these in 4.7-rc1 so it would be good
if we got all the fixes into final. The changes don't hit any other
hardware.
Other than the amdgpu Polaris changes:
- A single fix for atomic modesetting WARN
- Nouveau fix for when fbdev is disabled
- i915 fixes for FBC on Haswell and displayport regression
- Exynos fix for a display panel regression and some other minor changes
- Atmel fixes for scaling and OF graph interaction
- Allwiinner build, warning and probing fixes
- AMD GPU non-polaris fix for num_rbs and some minor fixes
Also I've just moved house, and my new place is Internet challenged
due to incompetent incumbent ISPs, hopefully sorted out in a couple of
weeks, so I might not be too responsive over the next while. It also
helps Daniel is on holidays for those couple of weeks as well"
* tag 'drm-fixes-for-v4.7-rc5' of git://people.freedesktop.org/~airlied/linux: (38 commits)
drm/atomic: Make drm_atomic_legacy_backoff reset crtc->acquire_ctx
drm/nouveau: fix for disabled fbdev emulation
drm/i915/fbc: Disable on HSW by default for now
drm/i915: Revert DisplayPort fast link training feature
drm/amd/powerplay: enable clock stretch feature for polaris
drm/amdgpu/gfx8: update golden setting for polaris10
drm/amd/powerplay: enable avfs feature for polaris
drm/amdgpu/atombios: add avfs struct for Polaris10/11
drm/amd/powerplay: add avfs related define for polaris
drm/amd/powrplay: enable stutter_mode for polaris.
drm/amd/powerplay: disable UVD SMU handshake for MCLK.
drm/amd/powerplay: initialize variables which were missed.
drm/amd/powerplay: enable PowerContainment feature for polaris10/11.
drm/amd/powerplay: need to notify system bios pcie device ready
drm/amd/powerplay: fix bug that function parameter was incorect.
drm/amd/powerplay: fix logic error.
drm: atmel-hlcdc: Fix OF graph parsing
drm: atmel-hlcdc: actually disable scaling when no scaling is required
drm/amdgpu: initialize amdgpu_cgs_acpi_eval_object result value
drm/amdgpu: precedence bug in amdgpu_device_init()
...
Linus Torvalds [Fri, 24 Jun 2016 03:59:14 +0000 (20:59 -0700)]
Merge tag 'pci-v4.7-fixes-1' of git://git./linux/kernel/git/helgaas/pci
Pull PCI fix from Bjorn Helgaas:
"Here's a small fix for v4.7. This problem was actually introduced in
v4.6 when we unified Kconfig, making PCIe support available everywhere
including sparc, where config reads into unaligned buffers cause
warnings. This fix is from Dave Miller.
As a reminder, any future PCI fixes for v4.7 will probably come from
Alex Williamson, since I'll be on vacation for most of the rest of
this cycle. I should be back about the time the merge window opens"
* tag 'pci-v4.7-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI: Fix unaligned accesses in VC code
Maarten Lankhorst [Thu, 23 Jun 2016 11:45:06 +0000 (13:45 +0200)]
drm/atomic: Make drm_atomic_legacy_backoff reset crtc->acquire_ctx
Atomic updates may acquire more state than initially locked through
drm_modeset_lock_crtc, running with heavy stress can cause a
WARN_ON(crtc->acquire_ctx) in drm_modeset_lock_crtc:
[ 601.491296] ------------[ cut here ]------------
[ 601.491366] WARNING: CPU: 0 PID: 2411 at
drivers/gpu/drm/drm_modeset_lock.c:191 drm_modeset_lock_crtc+0xeb/0xf0 [drm]
[ 601.491369] Modules linked in: drm i915 drm_kms_helper
[ 601.491414] CPU: 0 PID: 2411 Comm: kms_cursor_lega Tainted: G U 4.7.0-rc4-patser+ #4798
[ 601.491417] Hardware name: Intel Corporation Skylake Client
[ 601.491420]
0000000000000000 ffff88044d153c98 ffffffff812ead28 0000000000000000
[ 601.491425]
0000000000000000 ffff88044d153cd8 ffffffff810868e6 000000bf58058030
[ 601.491431]
ffff880088b415e8 ffff880458058030 ffff88008a271548 ffff88008a271568
[ 601.491436] Call Trace:
[ 601.491443] [<
ffffffff812ead28>] dump_stack+0x4d/0x65
[ 601.491447] [<
ffffffff810868e6>] __warn+0xc6/0xe0
[ 601.491452] [<
ffffffff81086968>] warn_slowpath_null+0x18/0x20
[ 601.491472] [<
ffffffffc00d4ffb>] drm_modeset_lock_crtc+0xeb/0xf0 [drm]
[ 601.491491] [<
ffffffffc00c5526>] drm_mode_cursor_common+0x66/0x180 [drm]
[ 601.491509] [<
ffffffffc00c91cc>] drm_mode_cursor_ioctl+0x3c/0x40 [drm]
[ 601.491524] [<
ffffffffc00bc94d>] drm_ioctl+0x14d/0x530 [drm]
[ 601.491540] [<
ffffffffc00c9190>] ? drm_mode_setcrtc+0x520/0x520 [drm]
[ 601.491545] [<
ffffffff81176aeb>] ? handle_mm_fault+0x106b/0x1430
[ 601.491550] [<
ffffffff81108441>] ? stop_one_cpu+0x61/0x70
[ 601.491556] [<
ffffffff811bb71d>] do_vfs_ioctl+0x8d/0x570
[ 601.491560] [<
ffffffff81290d7e>] ? security_file_ioctl+0x3e/0x60
[ 601.491565] [<
ffffffff811bbc74>] SyS_ioctl+0x74/0x80
[ 601.491571] [<
ffffffff810e321c>] ? posix_get_monotonic_raw+0xc/0x10
[ 601.491576] [<
ffffffff8175b11b>] entry_SYSCALL_64_fastpath+0x13/0x8f
[ 601.491581] ---[ end trace
56f3d3d85f000d00 ]---
For good measure, test mode_config.acquire_ctx too, although this should
never happen.
Testcase: kms_cursor_legacy
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Fri, 24 Jun 2016 00:51:12 +0000 (10:51 +1000)]
Merge branch 'drm-fixes-4.7' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
A bit bigger than I would normally like, but most of the large changes are
for polaris support and since polaris went upstream in 4.7, I'd like
to get the fixes in so it's in good shape when the hw becomes available.
The major changes only touch the polaris code so there is little chance
for regressions on other asics. The rest are just the usual collection
of bug fixes.
* 'drm-fixes-4.7' of git://people.freedesktop.org/~agd5f/linux:
drm/amd/powerplay: enable clock stretch feature for polaris
drm/amdgpu/gfx8: update golden setting for polaris10
drm/amd/powerplay: enable avfs feature for polaris
drm/amdgpu/atombios: add avfs struct for Polaris10/11
drm/amd/powerplay: add avfs related define for polaris
drm/amd/powrplay: enable stutter_mode for polaris.
drm/amd/powerplay: disable UVD SMU handshake for MCLK.
drm/amd/powerplay: initialize variables which were missed.
drm/amd/powerplay: enable PowerContainment feature for polaris10/11.
drm/amd/powerplay: need to notify system bios pcie device ready
drm/amd/powerplay: fix bug that function parameter was incorect.
drm/amd/powerplay: fix logic error.
drm/amdgpu: initialize amdgpu_cgs_acpi_eval_object result value
drm/amdgpu: precedence bug in amdgpu_device_init()
drm/amdgpu: fix num_rbs exposed to userspace (v2)
drm/amdgpu: missing bounds check in amdgpu_set_pp_force_state()
Dave Airlie [Fri, 24 Jun 2016 00:35:03 +0000 (10:35 +1000)]
Merge branch 'exynos-drm-fixes' of git://git./linux/kernel/git/daeinki/drm-exynos into drm-fixes
Since HW trigger mode was suppoted we have faced with a issue
that Display panel didn't work correctly when trigger mode was changed
in booting time.
For this, we keep trigger mode with SW trigger mode in default mode
like we did before.
However, we will need to consider PSR(Panel Self Reflash) mode to resolve
this issue fundamentally later.
* 'exynos-drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
drm/exynos: use logical AND in exynos_drm_plane_check_size()
drm/exynos: remove superfluous inclusions of fbdev header
drm/exynos: g2d: drop the _REG postfix from the stride defines
drm/exynos: don't use HW trigger for Exynos5420/5422/5800
drm/exynos: fimd: don't set .has_hw_trigger in s3c6400 driver data
drm/exynos: dp: Fix NULL pointer dereference due uninitialized connector
Dave Airlie [Fri, 24 Jun 2016 00:34:49 +0000 (10:34 +1000)]
Merge tag 'drm-atmel-hlcdc-fixes/for-4.7-rc5' of github.com:bbrezillon/linux-at91 into drm-fixes
Two bug fixes for the atmel-hlcdc driver.
* tag 'drm-atmel-hlcdc-fixes/for-4.7-rc5' of github.com:bbrezillon/linux-at91:
drm: atmel-hlcdc: Fix OF graph parsing
drm: atmel-hlcdc: actually disable scaling when no scaling is required
Dave Airlie [Fri, 24 Jun 2016 00:34:35 +0000 (10:34 +1000)]
Merge tag 'sunxi-drm-fixes-for-4.7' of https://git./linux/kernel/git/mripard/linux into drm-fixes
Allwinner sun4i DRM driver fixes
A bunch of fixes that address:
- Compilation errors in various corner cases
- Move to helpers
- Fix the pixel clock computation
- Fix our panel probe
* tag 'sunxi-drm-fixes-for-4.7' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
drm: sun4i: do cleanup if RGB output init fails
drm/sun4i: Convert to connector register helpers
drm/sun4i: remove simplefb at probe
drm/sun4i: rgb: panel is an error pointer
drm/sun4i: defer only if we didn't find our panel
drm/sun4i: rgb: Validate the clock rate
drm/sun4i: request exact rates to our parents
drm: sun4i: fix probe error handling
drm: sun4i: print DMA address correctly
drm/sun4i: add COMMON_CLK dependency
Dave Airlie [Fri, 24 Jun 2016 00:32:30 +0000 (10:32 +1000)]
Merge tag 'drm-intel-fixes-2016-06-22' of git://anongit.freedesktop.org/drm-intel into drm-fixes
Hi Dave, just a couple of display fixes, both stable stuff. Maybe we'll
be able to enable fbc by default one day.
* tag 'drm-intel-fixes-2016-06-22' of git://anongit.freedesktop.org/drm-intel:
drm/i915/fbc: Disable on HSW by default for now
drm/i915: Revert DisplayPort fast link training feature
Dave Airlie [Fri, 24 Jun 2016 00:16:37 +0000 (10:16 +1000)]
Merge branch 'linux-4.7' of git://github.com/skeggsb/linux into drm-fixes
* 'linux-4.7' of git://github.com/skeggsb/linux:
drm/nouveau: fix for disabled fbdev emulation
Dmitrii Tcvetkov [Mon, 20 Jun 2016 10:52:14 +0000 (13:52 +0300)]
drm/nouveau: fix for disabled fbdev emulation
Hello,
after this commit:
commit
f045f459d925138fe7d6193a8c86406bda7e49da
Author: Ben Skeggs <bskeggs@redhat.com>
Date: Thu Jun 2 12:23:31 2016 +1000
drm/nouveau/fbcon: fix out-of-bounds memory accesses
kernel started to oops when loading nouveau module when using GTX 780 Ti
video adapter. This patch fixes the problem.
Bug report: https://bugzilla.kernel.org/show_bug.cgi?id=120591
Signed-off-by: Dmitrii Tcvetkov <demfloro@demfloro.ru>
Suggested-by: Ilia Mirkin <imirkin@alum.mit.edu>
Fixes:
f045f459d925 ("nouveau_fbcon_init()")
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Cc: stable@vger.kernel.org
Chanwoo Choi [Thu, 23 Jun 2016 02:18:43 +0000 (11:18 +0900)]
PM / devfreq: Send the DEVFREQ_POSTCHANGE notification when target() is failed
This patch sends the DEVFREQ_POSTCHANGE notification when
devfreq->profile->targer() is failed. The PRECHANGE/POSTCHANGE
should be paired.
Fixes:
0fe3a66410a3 (PM / devfreq: Add new DEVFREQ_TRANSITION_NOTIFIER notifier)
Reported-by: Lin Huang <hl@rock-chips.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Mike Galbraith [Thu, 23 Jun 2016 06:45:42 +0000 (08:45 +0200)]
cpufreq: pcc-cpufreq: Fix doorbell.access_width
Commit
920de6ebfab8 (ACPICA: Hardware: Enhance
acpi_hw_validate_register() with access_width/bit_offset awareness)
apparently exposed a latent bug, doorbell.access_width is initialized
to 64, but per Lv Zheng, it should be 4, and indeed, making that
change does bring pcc-cpufreq back to life.
Fixes:
920de6ebfab8 (ACPICA: Hardware: Enhance acpi_hw_validate_register() with access_width/bit_offset awareness)
Suggested-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Mike Galbraith <umgwanakikbuti@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Linus Torvalds [Thu, 23 Jun 2016 19:20:01 +0000 (12:20 -0700)]
x86: avoid avoid passing around 'thread_info' in stack dumping code
None of the code actually wants a thread_info, it all wants a
task_struct, and it's just converting to a thread_info pointer much too
early.
No semantic change.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Thu, 23 Jun 2016 19:11:17 +0000 (12:11 -0700)]
locking: avoid passing around 'thread_info' in mutex debugging code
None of the code actually wants a thread_info, it all wants a
task_struct, and it's just converting back and forth between the two
("ti->task" to get the task_struct from the thread_info, and
"task_thread_info(task)" to go the other way).
No semantic change.
Acked-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Doug Ledford [Thu, 23 Jun 2016 16:22:33 +0000 (12:22 -0400)]
Merge branches '4.7-rc-misc', 'hfi1-fixes', 'i40iw-rc-fixes' and 'mellanox-rc-fixes' into k.o/for-4.7-rc
Bart Van Assche [Thu, 23 Jun 2016 07:35:48 +0000 (09:35 +0200)]
IB/srpt: Reduce QP buffer size
The memory needed for the send and receive queues associated with
a QP is proportional to the max_sge parameter. The current value
of that parameter is such that with an mlx4 HCA the QP buffer size
is 8 MB. Since DMA is used for communication between HCA and CPU
that buffer either has to be allocated coherently or map_single()
must succeed for that buffer. Since large contiguous allocations
are fragile and since the maximum segment size for e.g. swiotlb
is 256 KB, reduce the max_sge parameter. This patch avoids that
the following text appears on the console after SRP logout and
relogin on a system equipped with multiple IB HCAs:
mlx4_core 0000:05:00.0: swiotlb buffer is full (sz:
8388608 bytes)
swiotlb: coherent allocation failed for device 0000:05:00.0 size=
8388608
CPU: 11 PID: 148 Comm: kworker/11:1 Not tainted 4.7.0-rc4-dbg+ #1
Call Trace:
[<
ffffffff812c6d35>] dump_stack+0x67/0x92
[<
ffffffff812efe71>] swiotlb_alloc_coherent+0x141/0x150
[<
ffffffff810458be>] x86_swiotlb_alloc_coherent+0x3e/0x50
[<
ffffffffa03861fa>] mlx4_buf_direct_alloc.isra.5+0x9a/0x120 [mlx4_core]
[<
ffffffffa0386545>] mlx4_buf_alloc+0x165/0x1a0 [mlx4_core]
[<
ffffffffa035053d>] create_qp_common.isra.29+0x57d/0xff0 [mlx4_ib]
[<
ffffffffa03510da>] mlx4_ib_create_qp+0x12a/0x3f0 [mlx4_ib]
[<
ffffffffa031154a>] ib_create_qp+0x3a/0x250 [ib_core]
[<
ffffffffa055dd4b>] srpt_cm_handler+0x4bb/0xcad [ib_srpt]
[<
ffffffffa02c1ab0>] cm_process_work+0x20/0xf0 [ib_cm]
[<
ffffffffa02c3640>] cm_work_handler+0x1ac0/0x2059 [ib_cm]
[<
ffffffff810737ed>] process_one_work+0x19d/0x490
[<
ffffffff81073b29>] worker_thread+0x49/0x490
[<
ffffffff8107a0ea>] kthread+0xea/0x100
[<
ffffffff815b25af>] ret_from_fork+0x1f/0x40
Fixes:
b99f8e4d7bcd ("IB/srpt: convert to the generic RDMA READ/WRITE API")
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Laurence Oberman <loberman@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Shiraz Saleem [Tue, 14 Jun 2016 21:54:19 +0000 (16:54 -0500)]
i40iw: Enable level-1 PBL for fast memory registration
Set the chunk_size to enable level-1 PBL support when the fast memory
page count is more than one.
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Faisal Latif [Tue, 14 Jun 2016 21:54:18 +0000 (16:54 -0500)]
i40iw: Return correct max_fast_reg_page_list_len
Return correct value for max_fast_reg_page_list_len from
i40iw_query_device().
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Faisal Latif [Tue, 14 Jun 2016 21:54:17 +0000 (16:54 -0500)]
i40iw: Correct status check on i40iw_get_pble
i40iw_get_pble returns 0 on success. Correct the check on return
code.
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Shiraz Saleem [Tue, 14 Jun 2016 21:54:16 +0000 (16:54 -0500)]
i40iw: Correct CQ arming
CQ is armed for solicited events only, ignoring other notification
flags. Correct this by arming for next and arming for solicited
event if IB_CQ_SOLICITED is set. Also protect CQ shadow area update
with spinlock.
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Mike Marciniszyn [Wed, 22 Jun 2016 20:29:33 +0000 (13:29 -0700)]
IB/rdmavt: Correct qp_priv_alloc() return value test
The current drivers return errors from this calldown
wrapped in an ERR_PTR().
The rdmavt code incorrectly tests for NULL.
The code is fixed to use IS_ERR() and change ret according
to the driver return value.
Cc: Stable <stable@vger.kernel.org> # 4.6+
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Ashutosh Dixit [Sat, 18 Jun 2016 02:17:54 +0000 (19:17 -0700)]
IB/hfi1: Don't zero out qp->s_ack_queue in rvt_reset_qp
Since rvt_reset_qp already zero's out qp->s_ack_queue head and tail
pointers, there is no need to zero out qp->s_ack_queue itself.
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Mike Marciniszyn [Sat, 18 Jun 2016 02:17:49 +0000 (19:17 -0700)]
IB/hfi1: Fix deadlock with txreq allocation slow path
A failure in the get_txreq() inline will result in a
slow path retry using __get_txreq().
__get_txreq() attempts to procure the qp s_lock, which
is already held in all callers.
Fix by deleting the s_lock maintenance in __get_txreq()
and add sparse syntax hooks to future proof the code.
Cc: Stable <stable@vger.kernel.org> # 4.6+
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Chuck Lever [Wed, 22 Jun 2016 14:27:32 +0000 (17:27 +0300)]
IB/mlx4: Prevent cross page boundary allocation
Prevent cross page boundary allocation by allocating
new page, this is required to be aligned with ConnectX-3 HW
requirements.
Not doing that might cause to "RDMA read local protection" error.
Fixes:
1b2cd0fc673c ('IB/mlx4: Support the new memory registration API')
Suggested-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Dotan Barak [Wed, 22 Jun 2016 14:27:31 +0000 (17:27 +0300)]
IB/mlx4: Fix memory leak if QP creation failed
When RC, UC, or RAW QPs are created, a qp object is allocated (kzalloc).
If at a later point (in procedure create_qp_common) the qp creation fails,
this qp object must be freed.
Fixes:
1ffeb2eb8be99 ("IB/mlx4: SR-IOV IB context objects and proxy/tunnel SQP support")
Signed-off-by: Dotan Barak <dotanb@dev.mellanox.co.il>
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Yishai Hadas [Wed, 22 Jun 2016 14:27:30 +0000 (17:27 +0300)]
IB/mlx4: Verify port number in flow steering create flow
In procedure mlx4_ib_create_flow, passing an invalid port number
will cause an out-of-bounds array access. Data passed to this procedure
can come from user-space. Therefore, need to validate port number
before proceeding onwards.
Note that we check against the number of physical ports declared at
the verbs (ib core) level; When bonding is active, the verbs level
sees one physical port, even though the low-level driver sees two ports.
Fixes:
f77c0162a339 ("IB/mlx4: Add receive flow steering support")
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Reviewed-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Reviewed-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Yishai Hadas [Wed, 22 Jun 2016 14:27:29 +0000 (17:27 +0300)]
IB/mlx4: Fix error flow when sending mads under SRIOV
Fix mad send error flow to prevent double freeing address handles,
and leaking tx_ring entries when SRIOV is active.
If ib_mad_post_send fails, the address handle pointer in the tx_ring entry
must be set to NULL (or there will be a double-free) and tx_tail must be
incremented (or there will be a leak of tx_ring entries).
The tx_ring is handled the same way in the send-completion handler.
Fixes:
37bfc7c1e83f ("IB/mlx4: SR-IOV multiplex and demultiplex MADs")
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Reviewed-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Yishai Hadas [Wed, 22 Jun 2016 14:27:28 +0000 (17:27 +0300)]
IB/mlx4: Fix the SQ size of an RC QP
When calculating the required size of an RC QP send queue, leave
enough space for masked atomic operations, which require more space than
"regular" atomic operation.
Fixes:
6fa8f719844b ("IB/mlx4: Add support for masked atomic operations")
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Reviewed-by: Jack Morgenstein <jackm@mellanox.co.il>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Talat Batheesh [Wed, 22 Jun 2016 14:27:27 +0000 (17:27 +0300)]
IB/mlx5: Fix wrong naming of port_rcv_data counter
port_xmit_data is written instead of port_rcv_data.
Fixes:
3efd9a11212d ('IB/mlx5: Modify MAD reading counters method to use counter registers')
Signed-off-by: Talat Batheesh <talatb@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Eli Cohen [Wed, 22 Jun 2016 14:27:26 +0000 (17:27 +0300)]
IB/mlx5: Fix post send fence logic
If the caller specified IB_SEND_FENCE in the send flags of the work
request and no previous work request stated that the successive one
should be fenced, the work request would be executed without a fence.
This could result in RDMA read or atomic operations failure due to a MR
being invalidated. Fix this by adding the mlx5 enumeration for fencing
RDMA/atomic operations and fix the logic to apply this.
Fixes:
e126ba97dba9 ('mlx5: Add driver for Mellanox Connect-IB adapters')
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Maor Gottlieb [Wed, 22 Jun 2016 14:27:25 +0000 (17:27 +0300)]
IB/uverbs: Initialize ib_qp_init_attr with zeros
Initialize ib_qp_init_attr with zeros in order to avoid from garbage
in fields that won't be set with user values.
Fixes:
a060b5629ab06 ('IB/core: generic RDMA READ/WRITE API')
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Eli Cohen [Wed, 22 Jun 2016 14:27:24 +0000 (17:27 +0300)]
IB/core: Fix false search of the IB_SA_WELL_KNOWN_GUID
When virtualziation is supported, VFs may send SA MADs to a GID formed
by the concatenation of the subnet prefix with the
IB_SA_WELL_KNOWN_GUID. When a response is required, the current code
will search the local HCA's port for the received GID to figure out the
GID index of the entry containing this GID. However, since this is not a
real GID it will not be found and error will be printed.
We change the logic to check if the destination GID is this special GID
and avoid lookup in this case and use GID index 0.
Fixes:
a0c1b2a35087 ('IB/core: Support accessing SA in virtualized environment')
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Alex Vesker [Wed, 22 Jun 2016 14:27:23 +0000 (17:27 +0300)]
IB/core: Fix RoCE v1 multicast join logic issue
During multicast join of RoCEv1, IGMP join state and max hop limit
were updated incorrectly. IGMP join should be sent and marked as
joined only on RoCEv2 after a successful join. Max hops should be
updated to the hop limit on RoCEv2 regardless of the join state.
Fixes:
bee3c3c91865 ('IB/cma: Join and leave multicast groups...')
Signed-off-by: Alex Vesker <valex@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Talat Batheesh [Wed, 22 Jun 2016 14:27:22 +0000 (17:27 +0300)]
IB/core: Fix no default GIDs when netdevice reregisters
Currently, when the netdevice returned by get_netdev is unregistered,
we delete all GIDs (including the default GIDs) and reset their
attributes. Therefore, when we re-register it, no default GIDs
will be assigned (as their "default GID") attribute will be reset.
Fixing this by keeping "default GID" attribute.
Fixes:
03db3a2d81e6 ('IB/core: Add RoCE GID table management')
Signed-off-by: Talat Batheesh <talatb@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
David Vrabel [Tue, 17 May 2016 14:54:50 +0000 (15:54 +0100)]
x86/xen: avoid m2p lookup when setting early page table entries
When page tables entries are set using xen_set_pte_init() during early
boot there is no page fault handler that could handle a fault when
performing an M2P lookup.
In 64 bit guests (usually dom0) early_ioremap() would fault in
xen_set_pte_init() because an M2P lookup faults because the MFN is in
MMIO space and not mapped in the M2P. This lookup is done to see if
the PFN in in the range used for the initial page table pages, so that
the PTE may be set as read-only.
The M2P lookup can be avoided by moving the check (and clear of RW)
earlier when the PFN is still available.
Reported-by: Kevin Moraga <kmoragas@riseup.net>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Pali Rohár [Fri, 17 Jun 2016 22:54:47 +0000 (00:54 +0200)]
hwmon: (dell-smm) Cache fan_type() calls and change fan detection
On more Dell machines (e.g. Dell Precision M3800) fan_type() call is too
expensive (CPU is too long in SMM mode) and cause kernel to hang. This is
bug in Dell SMM or BIOS.
This patch caches type for each fan (as it should not change) and changes
the way how fan presense is detected. First it try function fan_status()
as was before commit
f989e55452c7 ("i8k: Add support for fan labels"). And
if that fails fallback to fan_type(). *_status() functions can fail in case
fan is not currently accessible (e.g. present on GPU which is currently
turned off).
Reported-by: Tolga Cakir <cevelnet@gmail.com>
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=112021
Cc: stable@vger.kernel.org # v4.0+, will need backport
Tested-by: Tolga Cakir <cevelnet@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Rafael J. Wysocki [Thu, 23 Jun 2016 12:48:41 +0000 (14:48 +0200)]
Merge branch 'fixes' of https://git./linux/kernel/git/mzx/devfreq into pm-devfreq
Pull devfreq fixes for v4.7 from MyungJoo Ham.
* 'fixes' of https://git.kernel.org/pub/scm/linux/kernel/git/mzx/devfreq:
PM / devfreq: fix initialization of current frequency in last status
PM / devfreq: exynos-nocp: Remove incorrect IS_ERR() check
PM / devfreq: remove double put_device
PM / devfreq: fix double call put_device
PM / devfreq: fix duplicated kfree on devfreq pointer
PM / devfreq: devm_kzalloc to have dev pointer more precisely
Andrey Grodzovsky [Tue, 21 Jun 2016 18:26:36 +0000 (14:26 -0400)]
xen/pciback: Fix conf_space read/write overlap check.
Current overlap check is evaluating to false a case where a filter
field is fully contained (proper subset) of a r/w request. This
change applies classical overlap check instead to include all the
scenarios.
More specifically, for (Hilscher GmbH CIFX 50E-DP(M/S)) device driver
the logic is such that the entire confspace is read and written in 4
byte chunks. In this case as an example, CACHE_LINE_SIZE,
LATENCY_TIMER and PCI_BIST are arriving together in one call to
xen_pcibk_config_write() with offset == 0xc and size == 4. With the
exsisting overlap check the LATENCY_TIMER field (offset == 0xd, length
== 1) is fully contained in the write request and hence is excluded
from write, which is incorrect.
Signed-off-by: Andrey Grodzovsky <andrey2805@gmail.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Reviewed-by: Jan Beulich <JBeulich@suse.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Juergen Gross [Thu, 23 Jun 2016 05:12:27 +0000 (07:12 +0200)]
x86/xen: fix upper bound of pmd loop in xen_cleanhighmap()
xen_cleanhighmap() is operating on level2_kernel_pgt only. The upper
bound of the loop setting non-kernel-image entries to zero should not
exceed the size of level2_kernel_pgt.
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Ross Lagerwall [Tue, 10 May 2016 09:27:54 +0000 (10:27 +0100)]
xen/balloon: Fix declared-but-not-defined warning
Fix a declared-but-not-defined warning when building with
XEN_BALLOON_MEMORY_HOTPLUG=n. This fixes a regression introduced by
commit
dfd74a1edfab ("xen/balloon: Fix crash when ballooning on x86 32
bit PAE").
Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Acked-by: Juergen Gross <jgross@suse.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Kirill A. Shutemov [Thu, 16 Jun 2016 21:26:15 +0000 (23:26 +0200)]
UBIFS: Implement ->migratepage()
During page migrations UBIFS might get confused
and the following assert triggers:
[ 213.480000] UBIFS assert failed in ubifs_set_page_dirty at 1451 (pid 436)
[ 213.490000] CPU: 0 PID: 436 Comm: drm-stress-test Not tainted
4.4.4-00176-geaa802524636-dirty #1008
[ 213.490000] Hardware name: Allwinner sun4i/sun5i Families
[ 213.490000] [<
c0015e70>] (unwind_backtrace) from [<
c0012cdc>] (show_stack+0x10/0x14)
[ 213.490000] [<
c0012cdc>] (show_stack) from [<
c02ad834>] (dump_stack+0x8c/0xa0)
[ 213.490000] [<
c02ad834>] (dump_stack) from [<
c0236ee8>] (ubifs_set_page_dirty+0x44/0x50)
[ 213.490000] [<
c0236ee8>] (ubifs_set_page_dirty) from [<
c00fa0bc>] (try_to_unmap_one+0x10c/0x3a8)
[ 213.490000] [<
c00fa0bc>] (try_to_unmap_one) from [<
c00fadb4>] (rmap_walk+0xb4/0x290)
[ 213.490000] [<
c00fadb4>] (rmap_walk) from [<
c00fb1bc>] (try_to_unmap+0x64/0x80)
[ 213.490000] [<
c00fb1bc>] (try_to_unmap) from [<
c010dc28>] (migrate_pages+0x328/0x7a0)
[ 213.490000] [<
c010dc28>] (migrate_pages) from [<
c00d0cb0>] (alloc_contig_range+0x168/0x2f4)
[ 213.490000] [<
c00d0cb0>] (alloc_contig_range) from [<
c010ec00>] (cma_alloc+0x170/0x2c0)
[ 213.490000] [<
c010ec00>] (cma_alloc) from [<
c001a958>] (__alloc_from_contiguous+0x38/0xd8)
[ 213.490000] [<
c001a958>] (__alloc_from_contiguous) from [<
c001ad44>] (__dma_alloc+0x23c/0x274)
[ 213.490000] [<
c001ad44>] (__dma_alloc) from [<
c001ae08>] (arm_dma_alloc+0x54/0x5c)
[ 213.490000] [<
c001ae08>] (arm_dma_alloc) from [<
c035cecc>] (drm_gem_cma_create+0xb8/0xf0)
[ 213.490000] [<
c035cecc>] (drm_gem_cma_create) from [<
c035cf20>] (drm_gem_cma_create_with_handle+0x1c/0xe8)
[ 213.490000] [<
c035cf20>] (drm_gem_cma_create_with_handle) from [<
c035d088>] (drm_gem_cma_dumb_create+0x3c/0x48)
[ 213.490000] [<
c035d088>] (drm_gem_cma_dumb_create) from [<
c0341ed8>] (drm_ioctl+0x12c/0x444)
[ 213.490000] [<
c0341ed8>] (drm_ioctl) from [<
c0121adc>] (do_vfs_ioctl+0x3f4/0x614)
[ 213.490000] [<
c0121adc>] (do_vfs_ioctl) from [<
c0121d30>] (SyS_ioctl+0x34/0x5c)
[ 213.490000] [<
c0121d30>] (SyS_ioctl) from [<
c000f2c0>] (ret_fast_syscall+0x0/0x34)
UBIFS is using PagePrivate() which can have different meanings across
filesystems. Therefore the generic page migration code cannot handle this
case correctly.
We have to implement our own migration function which basically does a
plain copy but also duplicates the page private flag.
UBIFS is not a block device filesystem and cannot use buffer_migrate_page().
Cc: stable@vger.kernel.org
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
[rw: Massaged changelog, build fixes, etc...]
Signed-off-by: Richard Weinberger <richard@nod.at>
Acked-by: Christoph Hellwig <hch@lst.de>
Richard Weinberger [Thu, 16 Jun 2016 21:26:14 +0000 (23:26 +0200)]
mm: Export migrate_page_move_mapping and migrate_page_copy
Export these symbols such that UBIFS can implement
->migratepage.
Cc: stable@vger.kernel.org
Signed-off-by: Richard Weinberger <richard@nod.at>
Acked-by: Christoph Hellwig <hch@lst.de>
Richard Weinberger [Mon, 20 Jun 2016 22:31:50 +0000 (00:31 +0200)]
ubi: Make recover_peb power cut aware
recover_peb() was never power cut aware,
if a power cut happened right after writing the VID header
upon next attach UBI would blindly use the new partial written
PEB and all data from the old PEB is lost.
In order to make recover_peb() power cut aware, write the new
VID with a proper crc and copy_flag set such that the UBI attach
process will detect whether the new PEB is completely written
or not.
We cannot directly use ubi_eba_atomic_leb_change() since we'd
have to unlock the LEB which is facing a write error.
Cc: stable@vger.kernel.org
Reported-by: Jörg Pfähler <pfaehler@isse.de>
Reviewed-by: Jörg Pfähler <pfaehler@isse.de>
Signed-off-by: Richard Weinberger <richard@nod.at>
Linus Walleij [Thu, 16 Jun 2016 09:55:55 +0000 (11:55 +0200)]
gpio: make library immune to error pointers
Most functions that take a GPIO descriptor in need to check the
descriptor for IS_ERR(). We do this mostly in the VALIDATE_DESC()
macro except for the gpiod_to_irq() function which needs special
handling.
Cc: stable@vger.kernel.org
Reported-by: Grygorii Strashko <grygorii.strashko@ti.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Linus Walleij [Wed, 15 Jun 2016 20:57:38 +0000 (22:57 +0200)]
gpio: make sure gpiod_to_irq() returns negative on NULL desc
commit
54d77198fdfbc4f0fe11b4252c1d9c97d51a3264
("gpio: bail out silently on NULL descriptors")
doesn't work for gpiod_to_irq(): drivers assume that NULL
descriptors will give negative IRQ numbers in return.
It has been pointed out that returning 0 is NO_IRQ and that
drivers should be amended to treat this as an error, but that
is for the longer term: now let us repair the semantics.
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Reported-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Axel Lin [Mon, 13 Jun 2016 05:48:53 +0000 (13:48 +0800)]
gpio: 104-idi-48: Fix missing spin_lock_init for ack_lock
Fixes:
9ae482104cb9 ("gpio: 104-idi-48: Clear pending interrupt once in IRQ handler")
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Linus Torvalds [Wed, 22 Jun 2016 21:11:24 +0000 (14:11 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ebiederm/user-namespace
Pull userns fix from Eric Biederman:
"This contains just a single small patch that fixes a tiny hole in the
logic of allowing unprivileged mounting of proc and sysfs.
In practice I don't think anyone is affected because having MNT_RDONLY
clear in mnt->mnt_flags but MS_RDONLY set in sb->s_flags is very weird
for a filesystem, and weirder for proc and sysfs. However if it
happens let's handle it correctly and then no one has to to worry
about this crazy case"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
mnt: Account for MS_RDONLY in fs_fully_visible
Linus Torvalds [Wed, 22 Jun 2016 17:13:25 +0000 (10:13 -0700)]
Merge tag 'gpio-v4.7-4' of git://git./linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"More GPIO fixes. Most prominent the gpiod_to_irq() fix brought to my
attention by Hans de Goede. The hardening patch is a consequence of
the reasoning around that bug.
- It was discovered that too many parts of the kernel does not
respect gpiod_to_irq() returning zero for an invalid IRQ. While
this gets fixed, we need to make it return negative errorcodes
again.
- Harden the library a bit when passed error pointers. It is a bug
to use these, but let's be helpful and warn the users.
- Fix an uninitialized spinlock in the 104-idi-48 driver"
* tag 'gpio-v4.7-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: make library immune to error pointers
gpio: make sure gpiod_to_irq() returns negative on NULL desc
gpio: 104-idi-48: Fix missing spin_lock_init for ack_lock
James Morse [Wed, 22 Jun 2016 09:06:13 +0000 (10:06 +0100)]
arm64: hibernate: Don't hibernate on systems with stuck CPUs
Hibernate relies on cpu hotplug to prevent secondary cores executing
the kernel text while it is being restored.
Add a call to cpus_are_stuck_in_kernel() to determine if there are
CPUs not counted by 'num_online_cpus()', and prevent hibernate in this
case.
Fixes:
82869ac57b5 ("arm64: kernel: Add support for hibernate/suspend-to-disk")
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
James Morse [Wed, 22 Jun 2016 09:06:12 +0000 (10:06 +0100)]
arm64: smp: Add function to determine if cpus are stuck in the kernel
kernel/smp.c has a fancy counter that keeps track of the number of CPUs
it marked as not-present and left in cpu_park_loop(). If there are any
CPUs spinning in here, features like kexec or hibernate may release them
by overwriting this memory.
This problem also occurs on machines using spin-tables to release
secondary cores.
After commit
44dbcc93ab67 ("arm64: Fix behavior of maxcpus=N")
we bring all known cpus into the secondary holding pen, meaning this
memory can't be re-used by kexec or hibernate.
Add a function cpus_are_stuck_in_kernel() to determine if either of these
cases have occurred.
Signed-off-by: James Morse <james.morse@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Lukasz Luba [Tue, 31 May 2016 10:25:09 +0000 (11:25 +0100)]
PM / devfreq: fix initialization of current frequency in last status
Some systems need current frequency from last_status for calculation
but it is zeroed during initialization. When the device starts there is
no history, but we can assume that the last frequency was the
same as the initial frequency (which is also used in 'previous_freq').
The log shows the result of this misinterpreted value.
[ 2.042847] ... Failed to get voltage for frequency 0: -34
Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
Reviewed-by: Javi Merino <javi.merino@arm.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Dan Carpenter [Thu, 26 May 2016 06:45:42 +0000 (09:45 +0300)]
PM / devfreq: exynos-nocp: Remove incorrect IS_ERR() check
Smatch complains because platform_get_resource() returns NULL on error
and not an error pointer so the check is wrong. Julia Lawall pointed
out that normally we don't check these, because devm_ioremap_resource()
has a check for NULL.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
MyungJoo Ham [Mon, 16 May 2016 02:41:57 +0000 (11:41 +0900)]
PM / devfreq: remove double put_device
When device_register() returns with error, it has already
done put_device() on the input device pointer.
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Cai Zhiyong [Sat, 14 May 2016 06:13:30 +0000 (14:13 +0800)]
PM / devfreq: fix double call put_device
1295 */
1296 void device_unregister(struct device *dev)
1297 {
1298 pr_debug("device: '%s': %s\n", dev_name(dev), __func__);
1299 device_del(dev);
1300 put_device(dev);
1301 }
1302 EXPORT_SYMBOL_GPL(device_unregister);
1303
device_unregister is called put_device, there is no need to call
put_device(&devfreq->dev) again.
Signed-off-by: Cai Zhiyong <caizhiyong@huawei.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
MyungJoo Ham [Fri, 2 Oct 2015 03:48:54 +0000 (12:48 +0900)]
PM / devfreq: fix duplicated kfree on devfreq pointer
device_unregister() calls kfree already.
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
MyungJoo Ham [Fri, 2 Oct 2015 03:39:23 +0000 (12:39 +0900)]
PM / devfreq: devm_kzalloc to have dev pointer more precisely
devm_kzalloc of devfreq's statistics data structure has been
using its parent device as the dev allocated for.
If a device's devfreq is disabled in run-time,
such allocated memory won't be freed.
Desginating more precisely with the devfreq device
pointer fixes the issue.
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Lv Zheng [Tue, 21 Jun 2016 04:34:15 +0000 (12:34 +0800)]
ACPICA: Namespace: Fix deadlock triggered by MLC support in dynamic table loading
The new module-level code (MLC) approach invokes MLC on the per-table
basis, but the dynamic loading support of this is incorrect because
of the lock order:
acpi_ns_evaluate
acpi_ex_enter_intperter
acpi_ns_load_table (triggered by Load opcode)
acpi_ns_exec_module_code_list
acpi_ex_enter_intperter
The regression is introduced by the following commit:
Commit:
2785ce8d0da1cac9d8f78615e116cf929e9a9123
ACPICA Commit:
071eff738c59eda1792ac24b3b688b61691d7e7c
Subject: ACPICA: Add per-table execution of module-level code
This patch fixes this regression by unlocking the interpreter lock
before invoking MLC. However, the unlocking is done to the
acpi_ns_load_table(), in which the interpreter lock should be locked
by acpi_ns_parse_table() but it wasn't.
Fixes:
2785ce8d0da1 (ACPICA: Add per-table execution of module-level code)
Reported-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Cc: 4.5+ <stable@vger.kernel.org> # 4.5+
[ rjw : Subject ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Shaokun Zhang [Tue, 21 Jun 2016 07:32:57 +0000 (15:32 +0800)]
arm64: mm: remove page_mapping check in __sync_icache_dcache
__sync_icache_dcache unconditionally skips the cache maintenance for
anonymous pages, under the assumption that flushing is only required in
the presence of D-side aliases [see
7249b79f6b4cc ("arm64: Do not flush
the D-cache for anonymous pages")].
Unfortunately, this breaks migration of anonymous pages holding
self-modifying code, where userspace cannot be reasonably expected to
reissue maintenance instructions in response to a migration.
This patch fixes the problem by removing the broken page_mapping(page)
check from the cache syncing code, otherwise we may end up fetching and
executing stale instructions from the PoU.
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: <stable@vger.kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Masahiro Yamada [Tue, 21 Jun 2016 01:44:00 +0000 (10:44 +0900)]
arm64: fix boot image dependencies to not generate invalid images
I fixed boot image dependencies for arch/arm in commit
3939f3345050
("ARM: 8418/1: add boot image dependencies to not generate invalid
images").
I see a similar problem for arch/arm64; "make -jN Image Image.gz"
would sometimes end up generating bad images where N > 1.
Fix the dependency in arch/arm64/Makefile to avoid the race
between "make Image" and "make Image.*".
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Jean-Philippe Brucker [Fri, 17 Jun 2016 17:33:00 +0000 (18:33 +0100)]
arm64: update ASID limit
During a rollover, we mark the active ASID on each CPU as reserved, before
allocating a new ID for the task that caused the rollover. This means that
with N CPUs, we can only guarantee the new task to obtain a valid ASID if
we have at least N+1 ASIDs. Update this limit in the initcall check.
Note that this restriction was introduced by commit
8e648066 on the
arch/arm side, which disallow re-using the previously active ASID on the
local CPU, as it would introduce a TLB race.
In addition, we only dispose of NUM_USER_ASIDS-1, since ASID 0 is
reserved. Add this restriction as well.
Signed-off-by: Jean-Philippe Brucker <jean-philippe.brucker@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Lyude [Thu, 9 Jun 2016 15:58:15 +0000 (11:58 -0400)]
drm/i915/fbc: Disable on HSW by default for now
>From https://bugs.freedesktop.org/show_bug.cgi?id=96461 :
This was kind of a difficult bug to track down. If you're using a
Haswell system running GNOME and you have fbc completely enabled and
working, playing videos can result in video artifacts. Steps to
reproduce:
- Run GNOME
- Ensure FBC is enabled and active
- Download a movie, I used the ogg version of Big Buck Bunny for this
- Run `gst-launch-1.0 filesrc location='some_movie.ogg' ! decodebin !
glimagesink` in a terminal
- Watch for about over a minute, you'll see small horizontal lines go
down the screen.
For the time being, disable FBC for Haswell by default.
Stefan Richter reported kernel freezes (no video artifacts) when fbc
is on. (E3-1245 v3 with HD P4600; openbox and some KDE and LXDE
applications, thread begins at https://lkml.org/lkml/2016/4/26/813).
We also got reports from Steven Honeyman on openbox+roxterm.
v2 (From Paulo):
- Add extra information to the commit message
- Add Fixes tag
- Rebase
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=96461
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=96464
Fixes:
a98ee79317b4 ("drm/i915/fbc: enable FBC by default on HSW and BDW")
Cc: stable@vger.kernel.org
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Lyude <cpaul@redhat.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1465487895-7401-1-git-send-email-cpaul@redhat.com
(cherry picked from commit
c7f7e2feffb0294302041507dfd5fc15f01afccc)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Mika Kahola [Mon, 20 Jun 2016 08:10:26 +0000 (11:10 +0300)]
drm/i915: Revert DisplayPort fast link training feature
It has been found out that in some HW combination the DisplayPort
fast link training feature caused screen flickering. Let's revert
this feature for now until we can ensure that the feature works for
all platforms.
This is a manual revert of commits
5fa836a9d859 ("drm/i915: DP link
training optimization") and
4e96c97742f4 ("drm/i915: eDP link training
optimization").
Fixes:
5fa836a9d859 ("drm/i915: DP link training optimization")
Fixes:
4e96c97742f4 ("drm/i915: eDP link training optimization")
Cc: <stable@vger.kernel.org> # v4.2+
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=91393
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Mika Kahola <mika.kahola@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1466410226-19543-1-git-send-email-mika.kahola@intel.com
(cherry picked from commit
91df09d92ad82c8778ca218097bf827f154292ca)
Rex Zhu [Tue, 7 Jun 2016 10:39:06 +0000 (18:39 +0800)]
drm/amd/powerplay: enable clock stretch feature for polaris
Power saving feature which reduces the amount of
voltage needed for specific engine clocks.
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Rex Zhu [Tue, 7 Jun 2016 06:09:56 +0000 (14:09 +0800)]
drm/amdgpu/gfx8: update golden setting for polaris10
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Rex Zhu [Wed, 8 Jun 2016 11:39:42 +0000 (19:39 +0800)]
drm/amd/powerplay: enable avfs feature for polaris
avfs feature is for voltage control based on
gpu system clock on polaris10
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Rex Zhu [Wed, 8 Jun 2016 11:17:31 +0000 (19:17 +0800)]
drm/amdgpu/atombios: add avfs struct for Polaris10/11
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Rex Zhu [Tue, 7 Jun 2016 10:38:39 +0000 (18:38 +0800)]
drm/amd/powerplay: add avfs related define for polaris
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Rex Zhu [Wed, 8 Jun 2016 11:42:48 +0000 (19:42 +0800)]
drm/amd/powrplay: enable stutter_mode for polaris.
To minimize the dram power expenditure during static -screen
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Rex Zhu [Wed, 8 Jun 2016 11:41:00 +0000 (19:41 +0800)]
drm/amd/powerplay: disable UVD SMU handshake for MCLK.
sync up with internal programming recommendations.
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Rex Zhu [Mon, 13 Jun 2016 09:46:31 +0000 (17:46 +0800)]
drm/amd/powerplay: initialize variables which were missed.
Missing pcie dpm settings.
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Ken Wang <Qingqing.Wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Rex Zhu [Wed, 11 May 2016 09:04:07 +0000 (17:04 +0800)]
drm/amd/powerplay: enable PowerContainment feature for polaris10/11.
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Rex Zhu [Tue, 14 Jun 2016 10:36:36 +0000 (18:36 +0800)]
drm/amd/powerplay: need to notify system bios pcie device ready
before request performance state.
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Ken Wang <Qingqing.Wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Rex Zhu [Mon, 13 Jun 2016 09:39:19 +0000 (17:39 +0800)]
drm/amd/powerplay: fix bug that function parameter was incorect.
Wrong value passed to acpi_pcie_perf_request.
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Ken Wang <Qingqing.Wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Rex Zhu [Fri, 17 Jun 2016 10:21:01 +0000 (18:21 +0800)]
drm/amd/powerplay: fix logic error.
the error lead powerplay can't get display info in DGPU case.
store_cc6_data just implement in APU.
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Boris Brezillon [Fri, 3 Jun 2016 07:17:36 +0000 (09:17 +0200)]
drm: atmel-hlcdc: Fix OF graph parsing
atmel_hlcdc_create_outputs() iterates over OF graph nodes and releases
the node (using of_node_put()) after each iteration, which is wrong
since for_each_endpoint_of_node() is already taking care of that.
Move the of_node_put() call in the error path.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reviewed-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Fixes:
17a8e03e7e97 ("drm: atmel-hlcdc: rework the output code to support drm bridges")
Boris Brezillon [Fri, 27 May 2016 14:09:25 +0000 (16:09 +0200)]
drm: atmel-hlcdc: actually disable scaling when no scaling is required
The driver is only enabling scaling, but never disabling it, thus, if you
enable the scaling feature once it stays enabled forever.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reported-by: Alex Vazquez <avazquez.dev@gmail.com>
Reviewed-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Fixes:
1a396789f65a ("drm: add Atmel HLCDC Display Controller support")
Cc: <stable@vger.kernel.org>
Nicolas Iooss [Sat, 18 Jun 2016 20:55:00 +0000 (22:55 +0200)]
drm/amdgpu: initialize amdgpu_cgs_acpi_eval_object result value
amdgpu_cgs_acpi_eval_object() returned the value of variable "result"
without initializing it first.
This bug has been found by compiling the kernel with clang. The
compiler complained:
drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c:972:14: error: variable
'result' is used uninitialized whenever 'for' loop exits because its
condition is false [-Werror,-Wsometimes-uninitialized]
for (i = 0; i < count; i++) {
^~~~~~~~~
drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c:1011:9: note: uninitialized
use occurs here
return result;
^~~~~~
drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c:972:14: note: remove the
condition if it is always true
for (i = 0; i < count; i++) {
^~~~~~~~~
drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c:864:12: note: initialize the
variable 'result' to silence this warning
int result;
^
= 0
Fixes:
3f1d35a03b3c ("drm/amdgpu: implement new cgs interface for acpi
function")
Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Cc: stable@vger.kernel.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Dan Carpenter [Sat, 18 Jun 2016 08:38:44 +0000 (11:38 +0300)]
drm/amdgpu: precedence bug in amdgpu_device_init()
! has higher precedence than bitwise & so we need to add parenthesis
for this to work as intended.
Fixes:
048765ad5af7 ('amdgpu: fix asic initialization for virtualized environments (v2)')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
David Miller [Sun, 19 Jun 2016 06:52:25 +0000 (23:52 -0700)]
PCI: Fix unaligned accesses in VC code
The save/restore buffers for VC state is first composed of a 2-byte control
register, then a bunch of 4-byte words.
This causes unaligned accesses which trap on platform such as sparc.
This is easy to fix by simply moving the buffer pointer forward by 4 bytes
instead of 2 after dealing with the control register. The length
adjustment needs to be changed likewise as well.
Fixes:
5f8fc43217a0 ("PCI: Include pci/pcie/Kconfig directly from pci/Kconfig")
Reported-by: Meelis Roos <mroos@linux.ee>
Reported-by: Anatoly Pugachev <matorola@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: stable@vger.kernel.org # v4.6+
Linus Torvalds [Mon, 20 Jun 2016 17:41:51 +0000 (10:41 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/vfs
Pull vfs fixes from Al Viro:
"A couple more of d_walk()/d_subdirs reordering fixes (stable fodder;
ought to solve that crap for good) and a fix for a brown paperbag bug
in d_alloc_parallel() (this cycle)"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
fix idiotic braino in d_alloc_parallel()
autofs races
much milder d_walk() race
Linus Torvalds [Mon, 20 Jun 2016 17:35:48 +0000 (10:35 -0700)]
Merge tag 'trace-v4.7-rc3' of git://git./linux/kernel/git/rostedt/linux-trace
Pull tracing fixes from Steven Rostedt:
"Two fixes for the tracing system:
- When trace_printk() is used with a non constant format descriptor,
it adds a NULL pointer into the trace format section, and the code
isn't prepared to deal with it. This bug appeared by a change that
was added in v3.5.
- The ftracetest (selftests section) can't handle testing histograms
when histograms are not configured. Currently it shows that they
fail the test, when they should state that they are unsupported.
This bug was added in the 4.7 merge window with the addition of the
historgram code"
* tag 'trace-v4.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
ftracetest: Fix hist unsupported result in hist selftests
tracing: Handle NULL formats in hold_module_trace_bprintk_format()
Linus Torvalds [Mon, 20 Jun 2016 17:18:58 +0000 (10:18 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/s390/linux
Pull s390 fixes from Martin Schwidefsky:
"Two more bugs fixes for 4.7:
- a KVM regression introduced with the pgtable.c code split
- a perf issue with two hardware PMUs using a shared event context"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/cpum_cf: use perf software context for hardware counters
KVM: s390/mm: Fix CMMA reset during reboot