Frediano Ziglio [Wed, 3 Jun 2015 11:09:10 +0000 (12:09 +0100)]
drm/qxl: Do not leak memory if qxl_release_list_add fails
If the function fails reference counter to the object is not decremented
causing leaks.
This is hard to spot as it happens only on very low memory situations.
Signed-off-by: Frediano Ziglio <fziglio@redhat.com> Cc: stable@vger.kernel.org Reviewed-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Frediano Ziglio [Wed, 3 Jun 2015 11:09:09 +0000 (12:09 +0100)]
drm/qxl: Do not cause spice-server to clean our objects
If objects are moved back from system memory to VRAM (and spice id
created again) memory is already initialized so we need to set flag
to not clear memory.
If you don't do it after a while using desktop many images turns to
black or transparents.
Signed-off-by: Frediano Ziglio <fziglio@redhat.com> Cc: stable@vger.kernel.org Reviewed-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Wed, 3 Jun 2015 23:36:39 +0000 (09:36 +1000)]
Merge branch 'virtio-gpu-drm-next' of git://git.kraxel.org/linux into drm-next
Yay, thanks to Gerd for pull this together.
* 'virtio-gpu-drm-next' of git://git.kraxel.org/linux:
Add MAINTAINERS entry for virtio-gpu.
Add virtio gpu driver.
drm_vblank_get: don't WARN_ON in case vblanks are not initialized
break kconfig dependency loop
Dave Airlie [Wed, 3 Jun 2015 23:24:28 +0000 (09:24 +1000)]
Merge branch 'linux-4.1.0-rc5-tilcdc-refactor' of https://github.com/jsarha/linux into drm-next
Please pull the contents of "Use DRM component API in tilcdc to
connect to tda998x" patch series.
* 'linux-4.1.0-rc5-tilcdc-refactor' of https://github.com/jsarha/linux:
drm/tilcdc: Force building of DRM_TILCDC_SLAVE_COMPAT
drm/tilcdc: Add DRM_TILCDC_SLAVE_COMPAT for ti,tilcdc,slave binding support
drm/tilcdc: use pm_runtime_irq_safe()
drm/tilcdc: Add support for external tda998x encoder
drm/tilcdc: Remove tilcdc slave support for tda998x driver
drm/tilcdc: Fix module unloading
drm/atomic: Clear crtc_state->active in drm_atomic_helper_set_config.
This fixes some regressions in i915 when converting to atomic.
set_config failed with -EINVAL, and I received the following warning
in dmesg:
[drm:drm_atomic_crtc_check] [CRTC:20] active without enabled
Solve this by clearing active when a crtc is disabled.
Because crtc_state->enable implies that connectors are active the
change from disabled->enabled can only happen for the crtc that's
being set_config'd, and checking for !crtc_state->enable is sufficient
here.
Cc: dri-devel@lists.freedesktop.org Reviewed-by: Rob Clark <robdclark@gmail.com> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Wed, 3 Jun 2015 23:17:45 +0000 (09:17 +1000)]
Merge tag 'topic/drm-misc-2015-05-27' of git://anongit.freedesktop.org/drm-intel into drm-next
One more round of drm-misc, again mostly atomic. Big thing is the
userspace blob code from Daniel Stone, with support for the mode_id blob
now added to the atomic ioctl. Finally we can do atomic modesets!
Note that the atomic ioctl is still behind the module knob since the
weston patches aren't quite ready yet imo - they lack TEST_ONLY support,
which is a fairly crucial bit of the atomic api. But besides that I think
it's all good to go. That's also why we didn't bother to hide the new blob
ioctls behind the knob, that part won't need to change. And if weston
patches get in shape in time we could throw the "atomic by default patch"
on top for 4.2.
* tag 'topic/drm-misc-2015-05-27' of git://anongit.freedesktop.org/drm-intel:
drm: Fix off-by-one in vblank hardware counter wraparound handling
drm/atomic: fix out of bounds read in for_each_*_in_state helpers
drm/atomic: Add MODE_ID property
drm/atomic: Add current-mode blob to CRTC state
drm: Add drm_atomic_set_mode_for_crtc
drm: check for garbage in unused addfb2 fields
drm: Retain reference to blob properties in lookup
drm/mode: Add user blob-creation ioctl
drm: Return error value from blob creation
drm: Allow creating blob properties without copy
drm/mode: Unstatic kernel-userspace mode conversion
drm/mode: Validate modes inside drm_crtc_convert_umode
drm/crtc_helper: Replace open-coded CRTC state helpers
drm: kerneldoc fixes for blob properties
drm/DocBook: Add more drm_bridge documentation
drm: bridge: Allow daisy chaining of bridges
drm/atomic: add all affected planes in drm_atomic_helper_check_modeset
drm/atomic: add drm_atomic_add_affected_planes
drm/atomic: add commit_planes_on_crtc helper
Dave Airlie [Wed, 3 Jun 2015 23:15:39 +0000 (09:15 +1000)]
Merge tag 'drm-amdkfd-next-2015-06-03' of git://people.freedesktop.org/~gabbayo/linux into drm-next
drm-amdkfd-next-2015-06-03:
- Add the H/W debugger support module, including new IOCTLs to:
- register/unregister a process as a debugged process
- Set address watch-point in the debugged process's GPU kernel
- Do a wave control operation in the debugged process's waves
See the commit messages for more details on the available operations.
The debugged process can only perform debug operation on itself. It is
blocked by the amdkfd+H/W from performing operations on other processes's
waves or GPU kernels. The blocking is done by setting the VMID and PASID of
the debugged process in the packets that are sent to the CP with the debug
instructions.
- Add support for static user-mode queues. These queues are regular queues,
but because they belong to the debugged process, we need to make sure the CP
doesn't preempt them during a debug operation. Therefore, we mark them as
static for the CP ignore them during preemption.
- Support killing all the waves when a process is terminated. This is needed
in case a process is terminated but we can't UNMAP its queues (can occur due
to several reasons). In that case, the CP could be stuck unless we kill all
its waves. This function is *very* important as it provides the kernel a high
level of control over the GPU. The reason we didn't upstream this function
so far, is because it is implemented using the H/W debugger module functions,
so we had to wait until we can upstream the H/W debugger module.
- Replace declaration of bitmap from unsigned long to standard DECLARE_BITMAP
* tag 'drm-amdkfd-next-2015-06-03' of git://people.freedesktop.org/~gabbayo/linux:
drm/amdkfd: Enforce kill all waves on process termination
drm/radeon: Add ATC VMID<-->PASID functions to kfd->kgd
drm/amdkfd: Implement address watch debugger IOCTL
drm/amdkfd: Implement wave control debugger IOCTL
drm/amdkfd: Implement (un)register debugger IOCTLs
drm/amdkfd: Add address watch operation to debugger
drm/amdkfd: Add wave control operation to debugger
drm/amdkfd: Add skeleton H/W debugger module support
drm/amdkfd: Add static user-mode queues support
drm/amdkfd: add H/W debugger IOCTL set definitions
drm/radeon: Add H/W debugger kfd->kgd functions
drm/amdkfd: Use DECLARE_BITMAP
Dave Airlie [Mon, 9 Sep 2013 00:02:56 +0000 (10:02 +1000)]
Add virtio gpu driver.
This patch adds a kms driver for the virtio gpu. The xorg modesetting
driver can handle the device just fine, the framebuffer for fbcon is
there too.
Qemu patches for the host side are under review currently.
The pci version of the device comes in two variants: with and without
vga compatibility. The former has a extra memory bar for the vga
framebuffer, the later is a pure virtio device. The only concern for
this driver is that in the virtio-vga case we have to kick out the
firmware framebuffer.
Initial revision has only 2d support, 3d (virgl) support requires
some more work on the qemu side and will be added later.
Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com>
Ben Goz [Wed, 20 May 2015 15:05:44 +0000 (18:05 +0300)]
drm/amdkfd: Enforce kill all waves on process termination
This commit makes sure that on process termination, after
we're destroying all the active queues, we're killing all the
existing wave front of the current process.
By doing this we're making sure that if any of the CUs were blocked
by infinite loop we're enforcing it to end the shader explicitly.
Signed-off-by: Ben Goz <ben.goz@amd.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Alexey Skidanov [Tue, 19 May 2015 16:25:01 +0000 (19:25 +0300)]
drm/radeon: Add ATC VMID<-->PASID functions to kfd->kgd
This patch adds three new interfaces to kfd2kgd interface file of radeon.
The interfaces are:
- Check if a specific VMID has a valid PASID mapping
- Retrieve the PASID which is mapped to a specific VMID
- Issue a VMID invalidation request to the ATC
- rename get_dbgmgr_mutex to kfd_get_dbgmgr_mutex to namespace it
- change void* to uint64_t inside ioctl arguments
- use kmalloc instead of kzalloc because we use copy_from_user
immediately after it
Yair Shachar [Wed, 20 May 2015 11:09:24 +0000 (14:09 +0300)]
drm/amdkfd: Implement wave control debugger IOCTL
v2:
- rename get_dbgmgr_mutex to kfd_get_dbgmgr_mutex to namespace it
- change void* to uint64_t inside ioctl arguments
- use kmalloc instead of kzalloc because we use copy_from_user
immediately after it
Yair Shachar [Wed, 20 May 2015 10:59:17 +0000 (13:59 +0300)]
drm/amdkfd: Add address watch operation to debugger
The address watch operation gives the ability to specify watch points
which will generate a shader breakpoint, based on a specified single
address or range of addresses.
Yair Shachar [Wed, 20 May 2015 10:48:26 +0000 (13:48 +0300)]
drm/amdkfd: Add skeleton H/W debugger module support
This patch adds the skeleton H/W debugger module support. This code
enables registration and unregistration of a single HSA process at a
time.
The module saves the process's pasid and use it to verify that only the
registered process is allowed to execute debugger operations through the
kernel driver.
v2: rename get_dbgmgr_mutex to kfd_get_dbgmgr_mutex to namespace it
Yair Shachar [Wed, 20 May 2015 10:43:04 +0000 (13:43 +0300)]
drm/amdkfd: Add static user-mode queues support
This patch adds support for static user-mode queues in QCM.
Queues which are designated as static can NOT be preempted by
the CP microcode when it is executing its scheduling algorithm.
This is needed for supporting the debugger feature, because we
can't allow the CP to preempt queues which are currently being debugged.
The number of queues that can be designated as static is limited by the
number of HQDs (Hardware Queue Descriptors).
Yair Shachar [Sun, 7 Dec 2014 15:05:22 +0000 (17:05 +0200)]
drm/amdkfd: add H/W debugger IOCTL set definitions
This patch adds four new IOCTLs to amdkfd. These IOCTLs expose a H/W
debugger functionality to the userspace.
The IOCTLs are:
- AMDKFD_IOC_DBG_REGISTER:
The purpose of this IOCTL is to notify amdkfd that a process wants to use
GPU debugging facilities on itself only.
It is expected that this IOCTL would be called before any other H/W
debugger requests are sent to amdkfd and for each GPU where the H/W
debugging needs to be enabled. The use of this IOCTL ensures that only
one instance of a debugger is active in the system.
- AMDKFD_IOC_DBG_UNREGISTER:
This IOCTL detaches the debugger/debugged process from the H/W
Debug which was established by the AMDKFD_IOC_DBG_REGISTER IOCTL.
- AMDKFD_IOC_DBG_ADDRESS_WATCH:
This IOCTL allows to set different watchpoints with various conditions as
indicated by the IOCTL's arguments. The available number of watchpoints
is retrieved from topology. This operation is confined to the current
debugged process, which was registered through AMDKFD_IOC_DBG_REGISTER.
- AMDKFD_IOC_DBG_WAVE_CONTROL:
This IOCTL allows to control a wavefront as indicated by the IOCTL's
arguments. For example, you can halt/resume or kill either a
single wavefront or a set of wavefronts. This operation is confined to
the current debugged process, which was registered through
AMDKFD_IOC_DBG_REGISTER.
Because the arguments for the address watch IOCTL and wave control IOCTL
are dynamic, meaning that they could vary in size, the userspace passes a
pointer to a structure (in userspace) that contains the value of the
arguments. The kernel driver is responsible to parse this structure and
validate its contents.
v2: change void* to uint64_t inside ioctl arguments
This patch adds new interface functions to the kfd2kgd interface file. The
new functions allow to perform H/W debugger operations by writing to GPU
registers.
Gerd Hoffmann [Tue, 11 Nov 2014 08:17:00 +0000 (09:17 +0100)]
break kconfig dependency loop
After adding virtio-gpu I get this funky kconfig dependency loop.
scripts/kconfig/conf --oldconfig Kconfig
drivers/video/fbdev/Kconfig:5:error: recursive dependency detected!
drivers/video/fbdev/Kconfig:5: symbol FB is selected by DRM_KMS_FB_HELPER
drivers/gpu/drm/Kconfig:34: symbol DRM_KMS_FB_HELPER is selected by DRM_VIRTIO_GPU
drivers/gpu/drm/virtio/Kconfig:1: symbol DRM_VIRTIO_GPU depends on VIRTIO
drivers/virtio/Kconfig:1: symbol VIRTIO is selected by REMOTEPROC
drivers/remoteproc/Kconfig:4: symbol REMOTEPROC is selected by OMAP_REMOTEPROC
drivers/remoteproc/Kconfig:12: symbol OMAP_REMOTEPROC depends on OMAP_IOMMU
drivers/iommu/Kconfig:141: symbol OMAP_IOMMU is selected by VIDEO_OMAP3
drivers/media/platform/Kconfig:96: symbol VIDEO_OMAP3 depends on VIDEO_V4L2
drivers/media/v4l2-core/Kconfig:6: symbol VIDEO_V4L2 depends on I2C
drivers/i2c/Kconfig:7: symbol I2C is selected by FB_DDC
drivers/video/fbdev/Kconfig:59: symbol FB_DDC is selected by FB_CYBER2000_DDC
drivers/video/fbdev/Kconfig:374: symbol FB_CYBER2000_DDC depends on FB_CYBER2000
drivers/video/fbdev/Kconfig:362: symbol FB_CYBER2000 depends on FB
Making VIDEO_OMAP3 depend on OMAP_IOMMU instead of selecting it breaks the
loop, which looks like the best way to handle it to me. Updated OMAP_IOMMU
help text accordingly.
Dave Airlie [Tue, 2 Jun 2015 08:10:50 +0000 (18:10 +1000)]
Merge tag 'drm-intel-next-fixes-2015-05-29' of git://anongit.freedesktop.org/drm-intel into drm-next
Fixes for 4.2. Nothing too serious (given that it's still pre merge
window). With that it's off for 2 weeks of vacation for me and taking care
of 4.2 fixes for Jani.
* tag 'drm-intel-next-fixes-2015-05-29' of git://anongit.freedesktop.org/drm-intel:
drm/i915: limit PPGTT size to 2GB in 32-bit platforms
drm/i915: Another fbdev hack to avoid PSR on fbcon.
drm/i915: Return the frontbuffer flip to enable intel_crtc_enable_planes.
drm/i915: disable IPS while getting the sink CRCs
drm/i915: Disable 12bpc hdmi for now
drm/i915: Adjust sideband locking a bit for CHV/VLV
drm/i915: s/dpio_lock/sb_lock/
drm/i915: Kill intel_flush_primary_plane()
drm/i915: Throw out WIP CHV power well definitions
drm/i915: Use the default 600ns LDO programming sequence delay
drm/i915: Remove unnecessary null check in execlists_context_unqueue
drm/i915: Use spinlocks for checking when to waitboost
drm/i915: Fix the confusing comment about the ioctl limits
Revert "drm/i915: Force clean compilation with -Werror"
drm/ttm: dma: Don't crash on memory in the vmalloc range
dma_alloc_coherent() can return memory in the vmalloc range.
virt_to_page() cannot handle such addresses and crashes. This
patch detects such cases and obtains the struct page * using
vmalloc_to_page() instead.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Linus Torvalds [Sun, 31 May 2015 23:00:34 +0000 (16:00 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs fix from Al Viro:
"Off-by-one in d_walk()/__dentry_kill() race fix.
It's very hard to hit; possible in the same conditions as the original
bug, except that you need the skipped branch to contain all the
remaining evictables, so that the d_walk()-calling loop in
d_invalidate() decides there's nothing more to do and doesn't go for
another pass - otherwise that next pass will sweep the sucker.
So it's not too urgent, but seeing that the fix is obvious and the
original commit has spread into all -stable branches..."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
d_walk() might skip too much
Linus Torvalds [Sun, 31 May 2015 19:03:42 +0000 (12:03 -0700)]
Merge branch 'upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/ralf/linux
Pull MIPS fixes from Ralf Baechle:
"MIPS fixes for 4.1 all across the tree"
* 'upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/ralf/linux:
MIPS: strnlen_user.S: Fix a CPU_DADDI_WORKAROUNDS regression
MIPS: BMIPS: Fix bmips_wr_vec()
MIPS: ath79: fix build problem if CONFIG_BLK_DEV_INITRD is not set
MIPS: Fuloong 2E: Replace CONFIG_USB_ISP1760_HCD by CONFIG_USB_ISP1760
MIPS: irq: Use DECLARE_BITMAP
ttyFDC: Fix to use native endian MMIO reads
MIPS: Fix CDMM to use native endian MMIO reads
Linus Torvalds [Sun, 31 May 2015 18:39:25 +0000 (11:39 -0700)]
Merge branch 'turbostat' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
Pull turbostat tool fixes from Len Brown:
"Just one minor kernel dependency in this batch -- added a #define to
msr-index.h"
* 'turbostat' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
tools/power turbostat: update version number to 4.7
tools/power turbostat: allow running without cpu0
tools/power turbostat: correctly decode of ENERGY_PERFORMANCE_BIAS
tools/power turbostat: enable turbostat to support Knights Landing (KNL)
tools/power turbostat: correctly display more than 2 threads/core
Pull SCSI target fixes from Nicholas Bellinger:
"These are mostly minor fixes, with the exception of the following that
address fall-out from recent v4.1-rc1 changes:
- regression fix related to the big fabric API registration changes
and configfs_depend_item() usage, that required cherry-picking one
of HCH's patches from for-next to address the issue for v4.1 code.
- remaining TCM-USER -v2 related changes to enforce full CDB
passthrough from Andy + Ilias.
Also included is a target_core_pscsi driver fix from Andy that
addresses a long standing issue with a Scsi_Host reference being
leaked on PSCSI device shutdown"
* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
iser-target: Fix error path in isert_create_pi_ctx()
target: Use a PASSTHROUGH flag instead of transport_types
target: Move passthrough CDB parsing into a common function
target/user: Only support full command pass-through
target/user: Update example code for new ABI requirements
target/pscsi: Don't leak scsi_host if hba is VIRTUAL_HOST
target: Fix se_tpg_tfo->tf_subsys regression + remove tf_subsystem
target: Drop signal_pending checks after interruptible lock acquire
target: Add missing parentheses
target: Fix bidi command handling
target/user: Disallow full passthrough (pass_level=0)
ISCSI: fix minor memory leak
Linus Torvalds [Sun, 31 May 2015 18:24:49 +0000 (11:24 -0700)]
Merge tag 'hwmon-for-linus-v4.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
"Some late hwmon patches, all headed for -stable
- fix sysfs attribute initialization in nct6775 and nct6683 drivers
- do not attempt to auto-detect tmp435 on I2C address 0x37
- ensure iio channel is of type IIO_VOLTAGE in ntc_thermistor driver"
* tag 'hwmon-for-linus-v4.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (nct6683) Add missing sysfs attribute initialization
hwmon: (nct6775) Add missing sysfs attribute initialization
hwmon: (tmp401) Do not auto-detect chip on I2C address 0x37
hwmon: (ntc_thermistor) Ensure iio channel is of type IIO_VOLTAGE
Roland Dreier [Sat, 30 May 2015 06:12:10 +0000 (23:12 -0700)]
iser-target: Fix error path in isert_create_pi_ctx()
We don't assign pi_ctx to desc->pi_ctx until we're certain to succeed
in the function. That means the cleanup path should use the local
pi_ctx variable, not desc->pi_ctx.
Andy Grover [Tue, 19 May 2015 21:44:41 +0000 (14:44 -0700)]
target: Use a PASSTHROUGH flag instead of transport_types
It seems like we only care if a transport is passthrough or not. Convert
transport_type to a flags field and replace TRANSPORT_PLUGIN_* with a
flag, TRANSPORT_FLAG_PASSTHROUGH.
Signed-off-by: Andy Grover <agrover@redhat.com> Reviewed-by: Ilias Tsitsimpis <iliastsi@arrikto.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Andy Grover [Tue, 19 May 2015 21:44:40 +0000 (14:44 -0700)]
target: Move passthrough CDB parsing into a common function
Aside from whether they handle BIDI ops or not, parsing of the CDB by
kernel and user SCSI passthrough modules should be identical. Move this
into a new passthrough_parse_cdb() and call it from tcm-pscsi and tcm-user.
Reported-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Ilias Tsitsimpis <iliastsi@arrikto.com> Signed-off-by: Andy Grover <agrover@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Andy Grover [Tue, 19 May 2015 21:44:39 +0000 (14:44 -0700)]
target/user: Only support full command pass-through
After much discussion, give up on only passing a subset of SCSI commands
to userspace and pass them all. Based on what pscsi is doing, make sure
to set SCF_SCSI_DATA_CDB for I/O ops, and define attributes identical to
pscsi.
Make hw_block_size configurable via dev param.
Remove mention of command filtering from tcmu-design.txt.
Signed-off-by: Andy Grover <agrover@redhat.com> Reviewed-by: Ilias Tsitsimpis <iliastsi@arrikto.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Andy Grover [Fri, 22 May 2015 21:07:44 +0000 (14:07 -0700)]
target/pscsi: Don't leak scsi_host if hba is VIRTUAL_HOST
See https://bugzilla.redhat.com/show_bug.cgi?id=1025672
We need to put() the reference to the scsi host that we got in
pscsi_configure_device(). In VIRTUAL_HOST mode it is associated with
the dev_virt, not the hba_virt.
Signed-off-by: Andy Grover <agrover@redhat.com> Cc: stable@vger.kernel.org # 2.6.38+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
There is just one configfs subsystem in the target code, so we might as
well add two helpers to reference / unreference it from the core code
instead of passing pointers to it around.
This fixes a regression introduced for v4.1-rc1 with commit 9ac8928e6,
where configfs_depend_item() callers using se_tpg_tfo->tf_subsys would
fail, because the assignment from the original target_core_subsystem[]
is no longer happening at target_register_template() time.
The following error message is seen when loading the nct6683 driver
with DEBUG_LOCK_ALLOC enabled.
BUG: key ffff88040b2f0030 not in .data!
------------[ cut here ]------------
WARNING: CPU: 0 PID: 186 at kernel/locking/lockdep.c:2988
lockdep_init_map+0x469/0x630()
DEBUG_LOCKS_WARN_ON(1)
Caused by a missing call to sysfs_attr_init() when initializing
sysfs attributes.
The following error message is seen when loading the nct6775 driver
with DEBUG_LOCK_ALLOC enabled.
BUG: key ffff88040b2f0030 not in .data!
------------[ cut here ]------------
WARNING: CPU: 0 PID: 186 at kernel/locking/lockdep.c:2988
lockdep_init_map+0x469/0x630()
DEBUG_LOCKS_WARN_ON(1)
Caused by a missing call to sysfs_attr_init() when initializing
sysfs attributes.
Linus Torvalds [Sat, 30 May 2015 00:09:39 +0000 (17:09 -0700)]
Merge tag 'acpi-pci-4.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull PCI / ACPI fix from Rafael Wysocki:
"This fixes a bug uncovered by a recent driver core change that
modified the implementation of the ACPI_COMPANION_SET() macro to
strictly rely on its second argument to be either NULL or a valid
pointer to struct acpi_device.
As it turns out, pcibios_root_bridge_prepare() on x86 and ia64 works
with the assumption that the only code path calling pci_create_root_bus()
is pci_acpi_scan_root() and therefore the sysdata argument passed to
it will always match the expectations of pcibios_root_bridge_prepare().
That need not be the case, however, and in particular it is not the
case for the Xen pcifront driver that passes a pointer to its own
private data strcture as sysdata to pci_scan_bus_parented() which then
passes it to pci_create_root_bus() and it ends up being used incorrectly
by pcibios_root_bridge_prepare()"
* tag 'acpi-pci-4.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PCI / ACPI: Do not set ACPI companions for host bridges with parents
Linus Torvalds [Fri, 29 May 2015 23:45:45 +0000 (16:45 -0700)]
Merge tag 'xfs-for-linus-4.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs
Pull xfs fixes from Dave Chinner:
"This is a little larger than I'd like late in the release cycle, but
all the fixes are for regressions introduced in the 4.1-rc1 merge, or
are needed back in -stable kernels fairly quickly as they are
filesystem corruption or userspace visible correctness issues.
Changes in this update:
- regression fix for new rename whiteout code
- regression fixes for new superblock generic per-cpu counter code
- fix for incorrect error return sign introduced in 3.17
- metadata corruption fixes that need to go back to -stable kernels"
* tag 'xfs-for-linus-4.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs:
xfs: fix broken i_nlink accounting for whiteout tmpfile inode
xfs: xfs_iozero can return positive errno
xfs: xfs_attr_inactive leaves inconsistent attr fork state behind
xfs: extent size hints can round up extents past MAXEXTLEN
xfs: inode and free block counters need to use __percpu_counter_compare
percpu_counter: batch size aware __percpu_counter_compare()
xfs: use percpu_counter_read_positive for mp->m_icount
Linus Torvalds [Fri, 29 May 2015 21:39:24 +0000 (14:39 -0700)]
Merge tag 'dm-4.1-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device-mapper fixes from Mike Snitzer:
"Quite a few fixes for DM's blk-mq support thanks to extra DM multipath
testing from Junichi Nomura and Bart Van Assche.
Also fix a casting bug in dm_merge_bvec() that could cause only a
single page to be added to a bio (Joe identified this while testing
dm-cache writeback)"
* tag 'dm-4.1-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm: fix casting bug in dm_merge_bvec()
dm: fix reload failure of 0 path multipath mapping on blk-mq devices
dm: fix false warning in free_rq_clone() for unmapped requests
dm: requeue from blk-mq dm_mq_queue_rq() using BLK_MQ_RQ_QUEUE_BUSY
dm mpath: fix leak of dm_mpath_io structure in blk-mq .queue_rq error path
dm: fix NULL pointer when clone_and_map_rq returns !DM_MAPIO_REMAPPED
dm: run queue on re-queue
Linus Torvalds [Fri, 29 May 2015 20:28:57 +0000 (13:28 -0700)]
Merge branch 'akpm' (patches from Andrew)
Merge misc fixes from Andrew Morton:
"10 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
scripts/gdb: fix lx-lsmod refcnt
omfs: fix potential integer overflow in allocator
omfs: fix sign confusion for bitmap loop counter
omfs: set error return when d_make_root() fails
fs, omfs: add NULL terminator in the end up the token list
MAINTAINERS: update CAPABILITIES pattern
fs/binfmt_elf.c:load_elf_binary(): return -EINVAL on zero-length mappings
tracing/mm: don't trace mm_page_pcpu_drain on offline cpus
tracing/mm: don't trace mm_page_free on offline cpus
tracing/mm: don't trace kmem_cache_free on offline cpus
Linus Torvalds [Fri, 29 May 2015 18:24:28 +0000 (11:24 -0700)]
Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux
Pull fixes for cpumask and modules from Rusty Russell:
"** NOW WITH TESTING! **
Two fixes which got lost in my recent distraction. One is a weird
cpumask function which needed to be rewritten, the other is a module
bug which is cc:stable"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
cpumask_set_cpu_local_first => cpumask_local_spread, lament
module: Call module notifier on failure after complete_formation()
MIPS: strnlen_user.S: Fix a CPU_DADDI_WORKAROUNDS regression
Correct a regression introduced with 8453eebd [MIPS: Fix strnlen_user()
return value in case of overlong strings.] causing assembler warnings
and broken code generated in __strnlen_kernel_nocheck_asm:
arch/mips/lib/strnlen_user.S: Assembler messages:
arch/mips/lib/strnlen_user.S:64: Warning: Macro instruction expanded into multiple instructions in a branch delay slot
with the CPU_DADDI_WORKAROUNDS option set, resulting in the function
looping indefinitely upon mounting NFS root.
Use conditional assembly to avoid a microMIPS code size regression.
Using $at unconditionally would cause such a regression as there are no
16-bit instruction encodings available for ALU operations using this
register. Using $v1 unconditionally would produce short microMIPS
encodings, but would prevent this register from being used across calls
to this function.
The extra LI operation introduced is free, replacing a NOP originally
scheduled into the delay slot of the branch that follows.
Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10205/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Linus Torvalds [Fri, 29 May 2015 17:52:15 +0000 (10:52 -0700)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"This is made up 4 groups of fixes detailed below.
vgem:
Due to some misgivings about possible bad use cases this allow,
backout a chunk of the interface to stop those use cases for now.
radeon:
Fix for an oops regression in the audio code, and a partial revert
for a fix that was cauing problems.
nouveau:
regression fix for Fermi, and display-less Maxwell boot fixes.
drm core:
a fix for i915 cursor vblank waiting in the atomic helpers"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/nouveau/gr/gm204: remove a stray printk
drm/nouveau/devinit/gm100-: force devinit table execution on boards without PDISP
drm/nouveau/devinit/gf100: make the force-post condition more obvious
drm/nouveau/gr/gf100-: fix wrong constant definition
drm/radeon: partially revert "fix VM_CONTEXT*_PAGE_TABLE_END_ADDR handling"
drm/radeon/audio: make sure connector is valid in hotplug case
Revert "drm/radeon: only mark audio as connected if the monitor supports it (v3)"
drm/radeon: don't share plls if monitors differ in audio support
drm/vgem: drop DRIVER_PRIME (v2)
drm/plane-helper: Adapt cursor hack to transitional helpers
Linus Torvalds [Fri, 29 May 2015 17:43:27 +0000 (10:43 -0700)]
Merge tag 'sound-4.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"No big surprise here, just a bunch of small fixes for HD-audio and
USB-audio:
- partial revert of widget power-saving for IDT codecs
- revert mute-LED enum ctl for Thinkpads due to confusion
- a quirk for a new Radeon HDMI controller
- Realtek codec name fix for Dell
- a workaround for headphone mic boost on some laptops
- stream_pm ops setup (and its fix for regression)
- another quirk for MS LifeCam USB-audio"
* tag 'sound-4.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda - Fix lost sound due to stream_pm ops cleanup
ALSA: hda - Disable Headphone Mic boost for ALC662
ALSA: hda - Disable power_save_node for IDT92HD71bxx
ALSA: hda - Fix noise on AMD radeon 290x controller
ALSA: hda - Set stream_pm ops automatically by generic parser
ALSA: hda/realtek - Add ALC256 alias name for Dell
Revert "ALSA: hda - Add mute-LED mode control to Thinkpad"
ALSA: usb-audio: Add quirk for MS LifeCam HD-3000
Joe Thornber [Fri, 29 May 2015 13:52:51 +0000 (14:52 +0100)]
dm: fix casting bug in dm_merge_bvec()
dm_merge_bvec() was originally added in f6fccb ("dm: introduce
merge_bvec_fn"). In that commit a value in sectors is converted to
bytes using << 9, and then assigned to an int. This code made
assumptions about the value of BIO_MAX_SECTORS.
A later commit 148e51 ("dm: improve documentation and code clarity in
dm_merge_bvec") was meant to have no functional change but it removed
the use of BIO_MAX_SECTORS in favor of using queue_max_sectors(). At
this point the cast from sector_t to int resulted in a zero value. The
fallout being dm_merge_bvec() would only allow a single page to be added
to a bio.
This interim fix is minimal for the benefit of stable@ because the more
comprehensive cleanup of passing a sector_t to all DM targets' merge
function will impact quite a few DM targets.
Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Cc: stable@vger.kernel.org # 3.19+
With following kernel message:
device-mapper: ioctl: can't change device type after initial table load.
DM tries to inherit the current table type using dm_table_set_type()
but it doesn't work as expected because of unnecessary check about
whether the target type is hybrid or not.
Hybrid type is for targets that work as either request-based or bio-based
and not required for blk-mq or non blk-mq checking.
Fixes: 65803c205983 ("dm table: train hybrid target type detection to select blk-mq if appropriate") Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Linus Torvalds [Fri, 29 May 2015 17:35:21 +0000 (10:35 -0700)]
Merge tag 'md/4.1-rc5-fixes' of git://neil.brown.name/md
Pull m,ore md bugfixes gfrom Neil Brown:
"Assorted fixes for new RAID5 stripe-batching functionality.
Unfortunately this functionality was merged a little prematurely. The
necessary testing and code review is now complete (or as complete as
it can be) and to code passes a variety of tests and looks quite
sensible.
Also a fix for some recent locking changes - a race was introduced
which causes a reshape request to sometimes fail. No data safety
issues"
* tag 'md/4.1-rc5-fixes' of git://neil.brown.name/md:
md: fix race when unfreezing sync_action
md/raid5: break stripe-batches when the array has failed.
md/raid5: call break_stripe_batch_list from handle_stripe_clean_event
md/raid5: be more selective about distributing flags across batch.
md/raid5: add handle_flags arg to break_stripe_batch_list.
md/raid5: duplicate some more handle_stripe_clean_event code in break_stripe_batch_list
md/raid5: remove condition test from check_break_stripe_batch_list.
md/raid5: Ensure a batch member is not handled prematurely.
md/raid5: close race between STRIPE_BIT_DELAY and batching.
md/raid5: ensure whole batch is delayed for all required bitmap updates.
drm/i915: Use complete address space in true PPGTT
v2: Prettify code and explain why this is needed. (Chris)
v3: Don't hide the compilation warning in 32-bit. (Chris)
Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Mika Kuoppala <mika.kuoppala@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Michel Thierry <michel.thierry@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Mike Snitzer [Thu, 28 May 2015 19:12:52 +0000 (15:12 -0400)]
dm: fix false warning in free_rq_clone() for unmapped requests
When stacking request-based dm device on non blk-mq device and
device-mapper target could not map the request (error target is used,
multipath target with all paths down, etc), the WARN_ON_ONCE() in
free_rq_clone() will trigger when it shouldn't.
The warning was added by commit aa6df8d ("dm: fix free_rq_clone() NULL
pointer when requeueing unmapped request"). But free_rq_clone() with
clone->q == NULL is valid usage for the case where
dm_kill_unmapped_request() initiates request cleanup.
Fix this false warning by just removing the WARN_ON -- it only generated
false positives and was never useful in catching the intended case
(completing clone request not being mapped e.g. clone->q being NULL).
Fixes: aa6df8d ("dm: fix free_rq_clone() NULL pointer when requeueing unmapped request") Reported-by: Bart Van Assche <bart.vanassche@sandisk.com> Reported-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
ARM: multi_v7_defconfig: Replace CONFIG_USB_ISP1760_HCD by CONFIG_USB_ISP1760
Since commit 100832abf065bc18 ("usb: isp1760: Make HCD support
optional"), CONFIG_USB_ISP1760_HCD is automatically selected when
needed. Enabling that option in the defconfig is now a no-op, and no
longer enables ISP1760 HCD support.
Re-enable the ISP1760 driver in the defconfig by enabling
USB_ISP1760_HOST_ROLE instead.
Arnd Bergmann [Fri, 29 May 2015 12:30:35 +0000 (14:30 +0200)]
Merge tag 'imx-fixes-4.1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes
Merge "The i.MX fixes for 4.1, 3rd round" from Shawn Guo:
It includes a couple of fixes for i.MX6 GPC code to let the new kernel
be able to boot with old DTBs:
- Booting v4.1-rc kernel with old DTBs will fail with a fat warning
(require low-level debug to be seen), due to the adoption of stacked
IRQ domain. The first fix improves the situation by allowing kernel
boot up with old DTBs, although suspend/resume still breaks.
- Booting new kernel with old DTBs that do not have power-domain info
will result in a hang. The second patch fixes the hang by skipping
the kernel power-domain registration if DTB has no power-domain info.
* tag 'imx-fixes-4.1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: imx6: gpc: don't register power domain if DT data is missing
ARM: imx6: allow booting with old DT
Arnd Bergmann [Fri, 29 May 2015 12:29:37 +0000 (14:29 +0200)]
Merge tag 'samsung-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes
Merge "Samsung fix for v4.1" from Kukjin Kim:
- Set display clock correctly for exynos4412-trats2
: fix the following error
exynos-drm: No connectors reported connected with modes
[drm] Cannot find any crtc or sizes - going 1024x768
* tag 'samsung-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: dts: set display clock correctly for exynos4412-trats2
Rodrigo Vivi [Thu, 28 May 2015 17:26:58 +0000 (10:26 -0700)]
drm/i915: Another fbdev hack to avoid PSR on fbcon.
With unified modeset and flip paths introduced recently when switching
to fbcon PSR was being disabled on fb_set_par path but re-enabled on
fb_pan_display one, causing missed screen updates and un unusable
console.
Regression introduced with:
commit bb54662350662815b4bfc2ff4464330a2dbd7041
Author: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Date: Tue Apr 21 17:13:13 2015 +0300
drm/i915: Unify modeset and flip paths of intel_crtc_set_config()
Cc: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Rodrigo Vivi [Thu, 28 May 2015 17:21:16 +0000 (10:21 -0700)]
drm/i915: Return the frontbuffer flip to enable intel_crtc_enable_planes.
Without this frontbuffer flip when enabling planes PSR got compromised
and wasn't being enabled waiting forever on the flush that never
arrived.
Another solution would to create a enable_cursor function and split this
frontbuffer flip among the different plane enable and disable functions.
But if necessary this can be done in a follow up work. For now let's
just fix the regression.
Takashi Iwai [Fri, 29 May 2015 07:43:29 +0000 (09:43 +0200)]
ALSA: hda - Fix lost sound due to stream_pm ops cleanup
The commit [49fb18972581: ALSA: hda - Set stream_pm ops automatically
by generic parser] resulted in regressions on some Realtek and VIA
codecs because these drivers set patch_ops after calling the generic
parser, thus stream_pm got cleared to NULL again. I haven't noticed
since I tested with IDT codec.
Restore (partial revert) the stream_pm ops for them to fix the
regression.
Fixes: 49fb18972581 ('ALSA: hda - Set stream_pm ops automatically by generic parser') Reported-by: Jeremiah Mahler <jmmahler@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Al Viro [Fri, 29 May 2015 03:09:19 +0000 (23:09 -0400)]
d_walk() might skip too much
when we find that a child has died while we'd been trying to ascend,
we should go into the first live sibling itself, rather than its sibling.
Off-by-one in question had been introduced in "deal with deadlock in
d_walk()" and the fix needs to be backported to all branches this one
has been backported to.
Cc: stable@vger.kernel.org # 3.2 and later Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Commit 2f35c41f58a9 ("module: Replace module_ref with atomic_t refcnt")
changes the way refcnt is handled but did not update the gdb script to
use the new variable.
Since refcnt is not per-cpu anymore, we can directly read its value.
Signed-off-by: Adrien Schildknecht <adrien+dev@schischi.me> Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com> Cc: Pantelis Koukousoulas <pktoss@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Bob Copeland [Thu, 28 May 2015 22:44:35 +0000 (15:44 -0700)]
omfs: fix sign confusion for bitmap loop counter
The count variable is used to iterate down to (below) zero from the size
of the bitmap and handle the one-filling the remainder of the last
partial bitmap block. The loop conditional expects count to be signed
in order to detect when the final block is processed, after which count
goes negative.
Unfortunately, a recent change made this unsigned along with some other
related fields. The result of is this is that during mount,
omfs_get_imap will overrun the bitmap array and corrupt memory unless
number of blocks happens to be a multiple of 8 * blocksize.
Fix by changing count back to signed: it is guaranteed to fit in an s32
without overflow due to an enforced limit on the number of blocks in the
filesystem.
Signed-off-by: Bob Copeland <me@bobcopeland.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Sasha Levin [Thu, 28 May 2015 22:44:29 +0000 (15:44 -0700)]
fs, omfs: add NULL terminator in the end up the token list
match_token() expects a NULL terminator at the end of the token list so
that it would know where to stop. Not having one causes it to overrun
to invalid memory.
In practice, passing a mount option that omfs didn't recognize would
sometimes panic the system.
Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: Bob Copeland <me@bobcopeland.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andrew Morton [Thu, 28 May 2015 22:44:24 +0000 (15:44 -0700)]
fs/binfmt_elf.c:load_elf_binary(): return -EINVAL on zero-length mappings
load_elf_binary() returns `retval', not `error'.
Fixes: a87938b2e246b81b4fb ("fs/binfmt_elf.c: fix bug in loading of PIE binaries") Reported-by: James Hogan <james.hogan@imgtec.com> Cc: Michael Davidson <md@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
tracing/mm: don't trace mm_page_pcpu_drain on offline cpus
Since tracepoints use RCU for protection, they must not be called on
offline cpus. trace_mm_page_pcpu_drain can be called on an offline cpu
in this scenario caught by LOCKDEP:
tracing/mm: don't trace mm_page_free on offline cpus
Since tracepoints use RCU for protection, they must not be called on
offline cpus. trace_mm_page_free can be called on an offline cpu in this
scenario caught by LOCKDEP:
tracing/mm: don't trace kmem_cache_free on offline cpus
Since tracepoints use RCU for protection, they must not be called on
offline cpus. trace_kmem_cache_free can be called on an offline cpu in
this scenario caught by LOCKDEP:
Dave Airlie [Fri, 29 May 2015 01:13:52 +0000 (11:13 +1000)]
Merge branch 'linux-4.1' of git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-fixes
Regression fix for Fermi acceleration, and fixes important to bringing
up display-less Maxwell boards.
* 'linux-4.1' of git://anongit.freedesktop.org/git/nouveau/linux-2.6:
drm/nouveau/gr/gm204: remove a stray printk
drm/nouveau/devinit/gm100-: force devinit table execution on boards without PDISP
drm/nouveau/devinit/gf100: make the force-post condition more obvious
drm/nouveau/gr/gf100-: fix wrong constant definition
Commit 3740c82590d8 ("drm/nouveau/gr/gf100-: add symbolic names for
classes") introduced a wrong macro definition causing acceleration setup
to fail. Fix it.
Signed-off-by: Lars Seipel <ls@slrz.net> Fixes: 3740c82590d8 ("drm/nouveau/gr/gf100-: add symbolic names for classes") Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Russell King [Thu, 28 May 2015 09:36:27 +0000 (10:36 +0100)]
drm: clean up drm_mm debugfs output
The drm_mm debugfs output is difficult to read as two different formats
are used for the addresses:
0x00000080000000-0x0000008000b000: 45056: used
0x8000b000-0x80016000: 45056: free
0x00000080016000-0x0000008001b000: 20480: used
0x8001b000-0x817a1000: 24666112: free
0x000000817a1000-0x000000817a8000: 28672: used
0x000000817a8000-0x00000081ba8000: 4194304: used
Fix this by using %#018llx for all addresses, thus making the output:
0x0000000080000000-0x000000008000b000: 45056: used
0x000000008000b000-0x0000000080016000: 45056: free
0x0000000080016000-0x000000008001b000: 20480: used
0x000000008001b000-0x00000000817a1000: 24666112: free
0x00000000817a1000-0x00000000817a8000: 28672: used
0x00000000817a8000-0x0000000081ba8000: 4194304: used
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Thu, 28 May 2015 23:11:49 +0000 (09:11 +1000)]
Merge tag 'drm-intel-next-2015-05-22' of git://anongit.freedesktop.org/drm-intel into drm-next
- cpt modeset sequence fixes from Ville
- more rps boosting tuning from Chris
- S3 support for skl (Damien)
- a pile of w/a for bxt from various people
- cleanup of primary plane pixel formats (Damien)
- a big pile of small patches with fixes and cleanups all over
* tag 'drm-intel-next-2015-05-22' of git://anongit.freedesktop.org/drm-intel: (90 commits)
drm/i915: Update DRIVER_DATE to 20150522
drm/i915: Introduce DRM_I915_THROTTLE_JIFFIES
drm/i915: Use the correct destructor for freeing requests on error
drm/i915/skl: don't fail colorkey + scaler request
drm/i915: Enable GTT caching on gen8
drm/i915: Move WaProgramL3SqcReg1Default:bdw to init_clock_gating()
drm/i915: Use ilk_init_lp_watermarks() on BDW
drm/i915: Disable FDI RX/TX before the ports
drm/i915: Disable CRT port after pipe on PCH platforms
drm/i915: Disable SDVO port after the pipe on PCH platforms
drm/i915: Disable HDMI port after the pipe on PCH platforms
drm/i915: Fix the IBX transcoder B workarounds
drm/i915: Write the SDVO reg twice on IBX
drm/i915: Fix DP enhanced framing for CPT
drm/i915: Clean up the CPT DP .get_hw_state() port readout
drm/i915: Clarfify the DP code platform checks
drm/i915: Remove the double register write from intel_disable_hdmi()
drm/i915: Remove a bogus 12bpc "toggle" from intel_disable_hdmi()
drm/i915/skl: Deinit/init the display at suspend/resume
drm/i915: Free RPS boosts for all laggards
...
Dave Airlie [Thu, 28 May 2015 23:10:54 +0000 (09:10 +1000)]
Merge branch 'drm-next-4.2' of git://people.freedesktop.org/~agd5f/linux into drm-next
for amdgpu separately next week. Highlights for radeon:
- VCE1 support
- Bug fixes and misc cleanups
* 'drm-next-4.2' of git://people.freedesktop.org/~agd5f/linux:
radeon: Deinline indirect register accessor functions
drm/radeon: Fix max_vblank_count value for current display engines
drm/radeon: stop using addr to check for BO move
drm/radeon: clean up radeon_audio_enable
drm/radeon: take the mode_config mutex when dealing with hpds (v2)
drm/radeon: make dpcd parameters const
drm/radeon: Use DECLARE_BITMAP
drm/radeon/tn/si: enable/disable vce cg when encoding v2
drm/radeon: add support for vce 1.0 clock gating
drm/radeon: add VCE 1.0 support v4
drm/radeon/dpm: add vce support for SI
drm/radeon/dpm: add vce dpm support for TN
drm/radeon: implement tn_set_vce_clocks
drm/radeon: implement si_set_vce_clocks v2
drm/radeon: allow some more VCE firmware versions
drm/radeon: rework VCE FW size calculation
drm/radeon: add a GPU reset counter queryable by userspace
Brian Foster [Thu, 28 May 2015 22:14:55 +0000 (08:14 +1000)]
xfs: fix broken i_nlink accounting for whiteout tmpfile inode
XFS uses the internal tmpfile() infrastructure for the whiteout inode
used for RENAME_WHITEOUT operations. For tmpfile inodes, XFS allocates
the inode, drops di_nlink, adds the inode to the agi unlinked list,
calls d_tmpfile() which correspondingly drops i_nlink of the vfs inode,
and then finishes the common inode setup (e.g., clear I_NEW and unlock).
The d_tmpfile() call was originally made inxfs_create_tmpfile(), but was
pulled up out of that function as part of the following commit to
resolve a deadlock issue:
330033d6 xfs: fix tmpfile/selinux deadlock and initialize security
As a result, callers of xfs_create_tmpfile() are responsible for either
calling d_tmpfile() or fixing up i_nlink appropriately. The whiteout
tmpfile allocation helper does neither. As a result, the vfs ->i_nlink
becomes inconsistent with the on-disk ->di_nlink once xfs_rename() links
it back into the source dentry and calls xfs_bumplink().
Update the assert in xfs_rename() to help detect this problem in the
future and update xfs_rename_alloc_whiteout() to decrement the link
count as part of the manual tmpfile inode setup.
Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
Dave Chinner [Thu, 28 May 2015 21:40:32 +0000 (07:40 +1000)]
xfs: xfs_iozero can return positive errno
It was missed when we converted everything in XFs to use negative error
numbers, so fix it now. Bug introduced in 3.17 by commit 2451337 ("xfs: global
error sign conversion"), and should go back to stable kernels.
Thanks to Brian Foster for noticing it.
cc: <stable@vger.kernel.org> # 3.17, 3.18, 3.19, 4.0 Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
Dave Chinner [Thu, 28 May 2015 21:40:08 +0000 (07:40 +1000)]
xfs: xfs_attr_inactive leaves inconsistent attr fork state behind
xfs_attr_inactive() is supposed to clean up the attribute fork when
the inode is being freed. While it removes attribute fork extents,
it completely ignores attributes in local format, which means that
there can still be active attributes on the inode after
xfs_attr_inactive() has run.
This leads to problems with concurrent inode writeback - the in-core
inode attribute fork is removed without locking on the assumption
that nothing will be attempting to access the attribute fork after a
call to xfs_attr_inactive() because it isn't supposed to exist on
disk any more.
To fix this, make xfs_attr_inactive() completely remove all traces
of the attribute fork from the inode, regardless of it's state.
Further, also remove the in-core attribute fork structure safely so
that there is nothing further that needs to be done by callers to
clean up the attribute fork. This means we can remove the in-core
and on-disk attribute forks atomically.
Also, on error simply remove the in-memory attribute fork. There's
nothing that can be done with it once we have failed to remove the
on-disk attribute fork, so we may as well just blow it away here
anyway.
cc: <stable@vger.kernel.org> # 3.12 to 4.0 Reported-by: Waiman Long <waiman.long@hp.com> Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
Clearly indicating that the extent length is greater than MAXEXTLEN,
which is 2097151. A prior trace point shows the allocation was an
exact size match and that a length greater than MAXEXTLEN was asked
for:
We don't see this problem with extent size hints through the IO path
because we can't do single IOs large enough to trigger MAXEXTLEN
allocation. fallocate(), OTOH, is not limited in it's allocation
sizes and so needs help here.
The issue is that the extent size hint alignment is rounding up the
extent size past MAXEXTLEN, because xfs_bmapi_write() is not taking
into account extent size hints when calculating the maximum extent
length to allocate. xfs_bmapi_reserve_delalloc() is already doing
this, but direct extent allocation is not.
Unfortunately, the calculation in xfs_bmapi_reserve_delalloc() is
wrong, and it works only because delayed allocation extents are not
limited in size to MAXEXTLEN in the in-core extent tree. hence this
calculation does not work for direct allocation, and the delalloc
code needs fixing. This may, in fact be the underlying bug that
occassionally causes transaction overruns in delayed allocation
extent conversion, so now we know it's wrong we should fix it, too.
Many thanks to Brian Foster for finding this problem during review
of this patch.
Hence the fix, after much code reading, is to allow
xfs_bmap_extsize_align() to align partial extents when full
alignment would extend the alignment past MAXEXTLEN. We can safely
do this because all callers have higher layer allocation loops that
already handle short allocations, and so will simply run another
allocation to cover the remainder of the requested allocation range
that we ignored during alignment. The advantage of this approach is
that it also removes the need for callers to do anything other than
limit their requests to MAXEXTLEN - they don't really need to be
aware of extent size hints at all.
Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
Dave Chinner [Thu, 28 May 2015 21:39:34 +0000 (07:39 +1000)]
xfs: inode and free block counters need to use __percpu_counter_compare
Because the counters use a custom batch size, the comparison
functions need to be aware of that batch size otherwise the
comparison does not work correctly. This leads to ASSERT failures
on generic/027 like this:
XFS uses non-stanard batch sizes for avoiding frequent global
counter updates on it's allocated inode counters, as they increment
or decrement in batches of 64 inodes. Hence the standard percpu
counter batch of 32 means that the counter is effectively a global
counter. Currently Xfs uses a batch size of 128 so that it doesn't
take the global lock on every single modification.
However, Xfs also needs to compare accurately against zero, which
means we need to use percpu_counter_compare(), and that has a
hard-coded batch size of 32, and hence will spuriously fail to
detect when it is supposed to use precise comparisons and hence
the accounting goes wrong.
Add __percpu_counter_compare() to take a custom batch size so we can
use it sanely in XFS and factor percpu_counter_compare() to use it.
Signed-off-by: Dave Chinner <dchinner@redhat.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Dave Chinner <david@fromorbit.com>
George Wang [Thu, 28 May 2015 21:39:34 +0000 (07:39 +1000)]
xfs: use percpu_counter_read_positive for mp->m_icount
Function percpu_counter_read just return the current counter, which can be
negative. This will cause the checking of "allocated inode
counts <= m_maxicount" false positive. Use percpu_counter_read_positive can
solve this problem, and be consistent with the purpose to introduce percpu
mechanism to xfs.
Signed-off-by: George Wang <xuw2015@gmail.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
This patch deinlines indirect register accessor functions.
These functions perform two mmio accesses, framed by spin lock/unlock.
Spin lock/unlock by itself takes more than 50 cycles in ideal case
(if lock is exclusively cached on current CPU).
With this .config: http://busybox.net/~vda/kernel_config,
after uninlining these functions have sizes and callsite counts
as follows:
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com> Cc: Christian König <christian.koenig@amd.com> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: linux-kernel@vger.kernel.org Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Paulo Zanoni [Mon, 25 May 2015 21:52:29 +0000 (18:52 -0300)]
drm/i915: disable IPS while getting the sink CRCs
This commit is the "sink CRC" version of:
commit 8c740dcea254a1472df2c0ac5ac585412a2507ec
Author: Paulo Zanoni <paulo.r.zanoni@intel.com>
Date: Fri Oct 17 18:42:03 2014 -0300
drm/i915: disable IPS while getting the pipe CRCs.
For some unknown reason, when IPS gets enabled, the sink CRC changes.
Since hsw_enable_ips() doesn't really guarantee to enable IPS (it
depends on package C-states), we can't really predict if IPS is
enabled or disabled while running our CRC tests, so let's just
completely disable IPS while sink CRCs are being used.
If we find a way to make IPS not change the pipe CRC result, we may
want to fix IPS and then revert this patch (and 8c740dcea too). While
this doesn't happen, let's merge this patch, so the IGT tests relying
on sink CRCs can work properly.
This was discovered while developing a new IGT test, which will
probably be called kms_frontbuffer_tracking.
Testcase: igt/kms_frontbuffer_tracking (not on upstream IGT yet) Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> 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>
drm/i915: Select starting pipe bpp irrespective or the primary plane
the kernel will try to use it even for the common rgb888 framebuffers.
Ville has patches to fix it all up properly, but unfortunately they're
stuck in review limbo. And since the 4.2 feature cutoff has passed we
need to somehow handle this regression.
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Paulo Zanoni <przanoni@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
projects / linux-beck.git / log