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Signed-off-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Signed-off-by: Eric Engestrom <eric@engestrom.ch>
[danvet: Clarify that the returned pointer must be freed with
kfree().]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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git://anongit.freedesktop.org/drm-intel into drm-next
- refactor ddi buffer programming a bit (Ville)
- large-scale renaming to untangle naming in the gem code (Chris)
- rework vma/active tracking for accurately reaping idle mappings of shared
objects (Chris)
- misc dp sst/mst probing corner case fixes (Ville)
- tons of cleanup&tunings all around in gem
- lockless (rcu-protected) request lookup, plus use it everywhere for
non(b)locking waits (Chris)
- pipe crc debugfs fixes (Rodrigo)
- random fixes all over
* tag 'drm-intel-next-2016-08-08' of git://anongit.freedesktop.org/drm-intel: (222 commits)
drm/i915: Update DRIVER_DATE to 20160808
drm/i915: fix aliasing_ppgtt leak
drm/i915: Update comment before i915_spin_request
drm/i915: Use drm official vblank_no_hw_counter callback.
drm/i915: Fix copy_to_user usage for pipe_crc
Revert "drm/i915: Track active streams also for DP SST"
drm/i915: fix WaInsertDummyPushConstPs
drm/i915: Assert that the request hasn't been retired
drm/i915: Repack fence tiling mode and stride into a single integer
drm/i915: Document and reject invalid tiling modes
drm/i915: Remove locking for get_tiling
drm/i915: Remove pinned check from madvise ioctl
drm/i915: Reduce locking inside swfinish ioctl
drm/i915: Remove (struct_mutex) locking for busy-ioctl
drm/i915: Remove (struct_mutex) locking for wait-ioctl
drm/i915: Do a nonblocking wait first in pread/pwrite
drm/i915: Remove unused no-shrinker-steal
drm/i915: Tidy generation of the GTT mmap offset
drm/i915/shrinker: Wait before acquiring struct_mutex under oom
drm/i915: Simplify do_idling() (Ironlake vt-d w/a)
...
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Through the GTT interface to the fence registers, we can only handle
linear, X and Y tiling. The more esoteric tiling patterns are ignored.
Document that the tiling ABI only supports upto Y tiling, and reject any
attempts to set a tiling mode other than NONE, X or Y.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1470388464-28458-17-git-send-email-chris@chris-wilson.co.uk
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Backmerge the 4.8 pull request state from Dave - conflicts were
getting out of hand, and Chris has some patches which outright don't
apply without everything merged together again.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
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Our GPUs impose certain requirements upon buffers that depend upon how
exactly they are used. Typically this is expressed as that they require
a larger surface than would be naively computed by pitch * height.
Normally such requirements are hidden away in the userspace driver, but
when we accept pointers from strangers and later impose extra conditions
on them, the original client allocator has no idea about the
monstrosities in the GPU and we require the userspace driver to inform
the kernel how many padding pages are required beyond the client
allocation.
v2: Long time, no see
v3: Try an anonymous union for uapi struct compatibility
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1470324762-2545-7-git-send-email-chris@chris-wilson.co.uk
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The purpose for each MOCS entry isn't well defined atm. Defining these
is important to remove any uncertainty about the use of these entries
for example in terms of performance and GPU/CPU coherency.
Suggested by Ville.
v4:
- Rename I915_MOCS_AUTO to I915_MOCS_PTE. (Chris)
CC: Rong R Yang <rong.r.yang@intel.com>
CC: Yakui Zhao <yakui.zhao@intel.com>
CC: Ville Syrjälä <ville.syrjala@linux.intel.com>
CC: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1467383528-16142-1-git-send-email-imre.deak@intel.com
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Two different sets of flag bits are stored in the 'flags' member of a
'struct drm_i915_gem_exec_object2', and they're defined in two different
source files, increasing the risk of an accidental clash.
Some flags in this field are supplied by the user; these are defined in
i915_drm.h, and they start from the LSB and work up.
Other flags are defined in i915_gem_execbuffer, for internal use within
that file only; they start from the MSB and work down.
So here we add a compile-time check that the two sets of flags do not
overlap, which would cause all sorts of confusion.
Signed-off-by: Dave Gordon <david.s.gordon@intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1468504324-12690-1-git-send-email-david.s.gordon@intel.com
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git://anongit.freedesktop.org/drm-intel into drm-next
- more fence destaging and cleanup (Gustavo&Sumit)
- DRIVER_LEGACY to untangle from DRIVER_MODESET
- drm_mm refactor (Chris)
- fbdev-less compile fies
- clipped plane src/dst rects (Ville)
- + a few mediatek patches that build on top of that (Bibby+Daniel)
- small stuff all over really
* tag 'topic/drm-misc-2016-08-12' of git://anongit.freedesktop.org/drm-intel: (43 commits)
dma-buf/fence: kerneldoc: remove spurious section header
dma-buf/fence: kerneldoc: remove unused struct members
Revert "gpu: drm: omapdrm: dss-of: add missing of_node_put after calling of_parse_phandle"
drm: Protect fb_defio in drivers with CONFIG_KMS_FBDEV_EMULATION
drm/radeon|amgpu: Make fbdev emulation optional
drm/vmwgfx: select CONFIG_FB
drm: Remove superflous linux/fb.h includes
drm/fb-helper: Add a dummy remove_conflicting_framebuffers
dma-buf/sync_file: only enable fence signalling on poll()
Documentation: add doc for sync_file_get_fence()
dma-buf/sync_file: add sync_file_get_fence()
dma-buf/sync_file: refactor fence storage in struct sync_file
dma-buf/fence-array: add fence_is_array()
drm/dp_helper: Rate limit timeout errors from drm_dp_i2c_do_msg()
drm/dp_helper: Print first error received on failure in drm_dp_dpcd_access()
drm: Add ratelimited versions of the DRM_DEBUG* macros
drm: Make sure drm_vblank_no_hw_counter isn't abused
drm/mediatek: Fix mtk_atomic_complete for runtime_pm
drm/mediatek: plane: Use FB's format's cpp to compute x offset
drm/mediatek: plane: Merge mtk_plane_enable into mtk_plane_atomic_update
...
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Commit e941759c74a44d6ac2eed21bb0a38b21fe4559e2 ("fence: dma-buf
cross-device synchronization (v18)") had a spurious kerneldoc section
header that caused Sphinx to complain. Fix it.
Fixes: e941759c74a4 ("fence: dma-buf cross-device synchronization (v18)")
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1470912480-32304-3-git-send-email-sumit.semwal@linaro.org
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Commit 0431b9065f28ecf6c320fefebe0241620049984f ("staging/android: bring
struct sync_pt back") removed child_list and active_list from struct fence,
but left it in kernel doc. Delete them.
Fixes: 0431b9065f28 ("staging/android: bring struct sync_pt back")
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1470912480-32304-2-git-send-email-sumit.semwal@linaro.org
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Lots of drivers don't properly compile without this when CONFIG_FB=n.
It's kinda a hack, but since CONFIG_FB doesn't stub any fucntions when
it's disabled I think it makes sense to add it to drm_fb_helper.h.
Long term we probably need to rethink all the logic to unload firmware
framebuffer drivers, at least if we want to be able to move away from
CONFIG_FB and fbcon.
v2: Unfortunately just stubbing out remove_conflicting_framebuffers in
drm_fb_helper.h upset gcc about static vs. non-static declarations, so
a new wrapper it needs to be. Means more churn :(
Cc: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Cc: Noralf Trønnes <noralf@tronnes.org>
Cc: tomi.valkeinen@ti.com
Cc: dh.herrmann@gmail.com
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1470847958-28465-2-git-send-email-daniel.vetter@ffwll.ch
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Signalling doesn't need to be enabled at sync_file creation, it is only
required if userspace waiting the fence to signal through poll().
Thus we delay fence_add_callback() until poll is called. It only adds the
callback the first time poll() is called. This avoid re-adding the same
callback multiple times.
v2: rebase and update to work with new fence support for sync_file
v3: use atomic operation to set enabled and protect fence_add_callback()
v4: use user bit from fence flags (comment from Chris Wilson)
v5: use ternary if on poll return (comment from Chris Wilson)
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
[sumits: remove unused var status]
Link: http://patchwork.freedesktop.org/patch/msgid/1470404378-27961-1-git-send-email-gustavo@padovan.org
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Creates a function that given an sync file descriptor returns a
fence containing all fences in the sync_file.
v2: Comments by Daniel Vetter
- Adapt to new version of fence_collection_init()
- Hold a reference for the fence we return
v3:
- Adapt to use fput() directly
- rename to sync_file_get_fence() as we always return one fence
v4: Adapt to use fence_array
v5: set fence through fence_get()
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
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Create sync_file->fence to abstract the type of fence we are using for
each sync_file. If only one fence is present we use a normal struct fence
but if there is more fences to be added to the sync_file a fence_array
is created.
This change cleans up sync_file a bit. We don't need to have sync_file_cb
array anymore. Instead, as we always have one fence, only one fence
callback is registered per sync_file.
v2: Comments from Chris Wilson and Christian König
- Not using fence_ops anymore
- fence_is_array() was created to differentiate fence from fence_array
- fence_array_teardown() is now exported and used under fence_is_array()
- struct sync_file lost num_fences member
v3: Comments from Chris Wilson and Christian König
- struct sync_file lost status member in favor of fence_is_signaled()
- drop use of fence_array_teardown()
- use sizeof(*fence) to allocate only an array on fence pointers
v4: Comments from Chris Wilson
- use sizeof(*fence) to reallocate array
- fix typo in comments
- protect num_fences sum against overflows
- use array->base instead of casting the to struct fence
v5: fixes checkpatch warnings
v6: fix case where all fences are signaled.
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Christian König <christian.koenig@amd.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
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Add helper to check if fence is array.
v2: Comments from Chris Wilson
- remove ternary if from ops comparison
- add EXPORT_SYMBOL(fence_array_ops)
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Christian König <christian.koenig@amd.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
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There's a couple of places where this would be useful for drivers (such
as reporting DP aux transaction timeouts).
Signed-off-by: Lyude <cpaul@redhat.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1470443443-27252-7-git-send-email-cpaul@redhat.com
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Add a version of drm_plane_helper_check_update() which takes a plane
state instead of having the caller pass in everything.
And to reduce code duplication, let's reimplement
drm_plane_helper_check_update() in terms of the new function, by
having a tempororary plane state on the stack.
v2: Add a note that the functions modifies the state (Chris)
v3: Fix drm_plane_helper_check_update() y coordinates (Daniel Kurtz)
Cc: Daniel Kurtz <djkurtz@chromium.org>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org> (v2)
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1470642910-14073-1-git-send-email-ville.syrjala@linux.intel.com
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Pretty much all driver will have need for the clipped plane
coordinates, so let's stuff then into drm_plane_state.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1469549224-1860-3-git-send-email-ville.syrjala@linux.intel.com
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Only property creation uses the rotation as an index, so convert the
to figure the index when needed.
v2: Use the new defines to build the _MASK defines (Sean)
Cc: intel-gfx@lists.freedesktop.org
Cc: linux-arm-msm@vger.kernel.org
Cc: freedreno@lists.freedesktop.org
Cc: malidp@foss.arm.com
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Liviu Dudau <Liviu.Dudau@arm.com>
Cc: Sean Paul <seanpaul@chromium.org>
Acked-by: Liviu Dudau <Liviu.Dudau@arm.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> (v1)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1469771405-17653-1-git-send-email-joonas.lahtinen@linux.intel.com
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It's super confusing that new drivers need to be marked with
DRIVER_MODESET when really it means DRIVER_MODERN. Much better to
invert the meaning and rename it to something that's suitably
off-putting.
Since there's over 100 places using DRIVER_MODESET we need to roll out
this change without a flag day.
v2: Update docs.
Reviewed-by: Frank Binns <frank.binns@imgtec.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1470251470-30830-1-git-send-email-daniel.vetter@ffwll.ch
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The minor referred to by "DRM_MINOR_LEGACY" is called 'dev->primary' and
gets 'cardX' as name assigned. Lets reduce this magnificent number of
names for the same concept by one and rename DRM_MINOR_LEGACY to
DRM_MINOR_PRIMARY (to match the actual struct-member name).
Furthermore, this is in no way a legacy node, so lets not call it that.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Frank Binns <frank.binns@imgtec.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20160803180432.1341-2-dh.herrmann@gmail.com
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Having added an interval-tree to struct drm_mm, we can replace the
auxiliary rb-tree inside the drm_vma_manager with it.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: David Herrmann <dh.herrmann@gmail.com>
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1470236651-678-2-git-send-email-chris@chris-wilson.co.uk
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In addition to the last-in/first-out stack for accessing drm_mm nodes,
we occasionally and in the future often want to find a drm_mm_node by an
address. To do so efficiently we need to track the nodes in an interval
tree - lookups for a particular address will then be O(lg(N)), where N
is the number of nodes in the range manager as opposed to O(N).
Insertion however gains an extra O(lg(N)) step for all nodes
irrespective of whether the interval tree is in use. For future i915
patches, eliminating the linear walk is a significant improvement.
v2: Use generic interval-tree template for u64 and faster insertion.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: David Herrmann <dh.herrmann@gmail.com>
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1470236651-678-1-git-send-email-chris@chris-wilson.co.uk
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git://git.pengutronix.de/git/pza/linux into drm-next
imx-drm updates and encoder atomic_mode_set helper callback
- add pixel clock and DE polarity configuration from device tree
using display timing bindings for parallel and LVDS output
- cleanup/remove trivial functions
- cleanup and fixes in preparation for capture support
- add atomic_mode_set helper and use it in imx-ldb - this is an
alternative to the encoder mode_set callback that passes the
crtc and connector state instead of just the mode. It allows
drivers to get information from the attached connector without
having to iterate over all connectors
- add drm_bridge support to imx-ldb, for bridges attached via LVDS
* tag 'imx-drm-next-2016-08-12' of git://git.pengutronix.de/git/pza/linux:
drm/imx-ldb: Add support to drm-bridge
drm/imx: imx-ldb: use encoder atomic_mode_set callback
drm/atomic-helper: Add atomic_mode_set helper callback
drm/imx: Remove imx_drm_handle_vblank()
gpu: ipu-v3: Add missing IDMAC channel names
gpu: ipu-v3: rename CSI client device
gpu: ipu-v3: Fix IRT usage
gpu: ipu-v3: Fix CSI data format for 16-bit media bus formats
gpu: ipu-v3: set correct full sensor frame for PAL/NTSC
gpu: ipu-v3: Add VDI input IDMAC channels
gpu: ipu-v3: Add ipu_get_num()
gpu: ipu-cpmem: Add ipu_cpmem_get_burstsize()
gpu: ipu-cpmem: Add ipu_cpmem_set_uv_offset()
drm/imx: Remove imx_drm_crtc_id()
drm/imx: Remove imx_drm_crtc_vblank_get/_put()
drm/imx: convey the pixelclk-active and de-active flags from DT to the ipu-di driver
drm: add a helper function to extract 'de-active' and 'pixelclk-active' from DT
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Some encoders need more information from crtc and connector state or
connector display info than just the mode during mode setting. This
patch adds an atomic encoder mode setting variant that passes the crtc
state (which contains the modes) and the connector state.
atomic_enable/disable variants that additionally pass crtc and connector
state don't seem to be necessary for any current driver. mode_fixup
already has an atomic equivalent in atomic_check.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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This patch adds the remaining missing IDMAC channel names: VDIC channels
for combining, the separate alpha channels for the MEM->IC and MEM->DC
ASYNC channels, and the DC read, command, and output mask channels.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
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Adds the VDIC field input IDMAC channels. These channels
transfer fields F(n-1), F(n), and F(N+1) from memory to
the VDIC (channels 8, 9, 10 respectively).
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
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Adds of-alias id to ipu_soc and retrieve with ipu_get_num().
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
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Adds ipu_cpmem_get_burstsize().
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
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Adds ipu_cpmem_set_uv_offset(), to set planar U/V offsets.
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
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ipu-di driver
The 'de-active' and 'pixelclk-active' DT properties are evaluated
by of_parse_display_timing() called from of_get_drm_display_mode(),
but later lost in the conversion from videomode.flags to
drm_display_mode.flags.
Enhance of_get_drm_display_mode() to also return the bus flags in a
separate variable, so that they can be passed on to the ipu-di
driver.
Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
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add a helper function to extract information about pixel clock and DE
polarity from DT for use by of_get_drm_display_mode().
While at it, convert spaces to tabs in indentation in drm_modes.h.
Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
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Pull KVM fixes from Radim Krčmář:
"KVM:
- lock kvm_device list to prevent corruption on device creation.
PPC:
- split debugfs initialization from creation of the xics device to
unlock the newly taken kvm lock earlier.
s390:
- prevent userspace from triggering two WARN_ON_ONCE.
MIPS:
- fix several issues in the management of TLB faults (Cc: stable)"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
MIPS: KVM: Propagate kseg0/mapped tlb fault errors
MIPS: KVM: Fix gfn range check in kseg0 tlb faults
MIPS: KVM: Add missing gfn range check
MIPS: KVM: Fix mapped fault broken commpage handling
KVM: Protect device ops->create and list_add with kvm->lock
KVM: PPC: Move xics_debugfs_init out of create
KVM: s390: reset KVM_REQ_MMU_RELOAD if mapping the prefix failed
KVM: s390: set the prefix initially properly
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KVM devices were manipulating list data structures without any form of
synchronization, and some implementations of the create operations also
suffered from a lack of synchronization.
Now when we've split the xics create operation into create and init, we
can hold the kvm->lock mutex while calling the create operation and when
manipulating the devices list.
The error path in the generic code gets slightly ugly because we have to
take the mutex again and delete the device from the list, but holding
the mutex during anon_inode_getfd or releasing/locking the mutex in the
common non-error path seemed wrong.
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
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As we are about to hold the kvm->lock during the create operation on KVM
devices, we should move the call to xics_debugfs_init into its own
function, since holding a mutex over extended amounts of time might not
be a good idea.
Introduce an init operation on the kvm_device_ops struct which cannot
fail and call this, if configured, after the device has been created.
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
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Pull block fixes from Jens Axboe:
- an NVMe fix from Gabriel, fixing a suspend/resume issue on some
setups
- addition of a few missing entries in the block queue sysfs
documentation, from Joe
- a fix for a sparse shadow warning for the bvec iterator, from
Johannes
- a writeback deadlock involving raid issuing barriers, and not
flushing the plug when we wakeup the flusher threads. From
Konstantin
- a set of patches for the NVMe target/loop/rdma code, from Roland and
Sagi
* 'for-linus' of git://git.kernel.dk/linux-block:
bvec: avoid variable shadowing warning
doc: update block/queue-sysfs.txt entries
nvme: Suspend all queues before deletion
mm, writeback: flush plugged IO in wakeup_flusher_threads()
nvme-rdma: Remove unused includes
nvme-rdma: start async event handler after reconnecting to a controller
nvmet: Fix controller serial number inconsistency
nvmet-rdma: Don't use the inline buffer in order to avoid allocation for small reads
nvmet-rdma: Correctly handle RDMA device hot removal
nvme-rdma: Make sure to shutdown the controller if we can
nvme-loop: Remove duplicate call to nvme_remove_namespaces
nvme-rdma: Free the I/O tags when we delete the controller
nvme-rdma: Remove duplicate call to nvme_remove_namespaces
nvme-rdma: Fix device removal handling
nvme-rdma: Queue ns scanning after a sucessful reconnection
nvme-rdma: Don't leak uninitialized memory in connect request private data
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Due to the (indirect) nesting of min(..., min(...)), sparse will
show a variable shadowing warning whenever bvec.h is included.
Avoid that by assigning the inner min() to a temporary variable first.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
"Mostly tooling fixes, plus two uncore-PMU fixes, an uprobes fix, a
perf-cgroups fix and an AUX events fix"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/intel/uncore: Add enable_box for client MSR uncore
perf/x86/intel/uncore: Fix uncore num_counters
uprobes/x86: Fix RIP-relative handling of EVEX-encoded instructions
perf/core: Set cgroup in CPU contexts for new cgroup events
perf/core: Fix sideband list-iteration vs. event ordering NULL pointer deference crash
perf probe ppc64le: Fix probe location when using DWARF
perf probe: Add function to post process kernel trace events
tools: Sync cpufeatures headers with the kernel
toops: Sync tools/include/uapi/linux/bpf.h with the kernel
tools: Sync cpufeatures.h and vmx.h with the kernel
perf probe: Support signedness casting
perf stat: Avoid skew when reading events
perf probe: Fix module name matching
perf probe: Adjust map->reloc offset when finding kernel symbol from map
perf hists: Trim libtraceevent trace_seq buffers
perf script: Add 'bpf-output' field to usage message
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There's a perf stat bug easy to observer on a machine with only one cgroup:
$ perf stat -e cycles -I 1000 -C 0 -G /
# time counts unit events
1.000161699 <not counted> cycles /
2.000355591 <not counted> cycles /
3.000565154 <not counted> cycles /
4.000951350 <not counted> cycles /
We'd expect some output there.
The underlying problem is that there is an optimization in
perf_cgroup_sched_{in,out}() that skips the switch of cgroup events
if the old and new cgroups in a task switch are the same.
This optimization interacts with the current code in two ways
that cause a CPU context's cgroup (cpuctx->cgrp) to be NULL even if a
cgroup event matches the current task. These are:
1. On creation of the first cgroup event in a CPU: In current code,
cpuctx->cpu is only set in perf_cgroup_sched_in, but due to the
aforesaid optimization, perf_cgroup_sched_in will run until the next
cgroup switches in that CPU. This may happen late or never happen,
depending on system's number of cgroups, CPU load, etc.
2. On deletion of the last cgroup event in a cpuctx: In list_del_event,
cpuctx->cgrp is set NULL. Any new cgroup event will not be sched in
because cpuctx->cgrp == NULL until a cgroup switch occurs and
perf_cgroup_sched_in is executed (updating cpuctx->cgrp).
This patch fixes both problems by setting cpuctx->cgrp in list_add_event,
mirroring what list_del_event does when removing a cgroup event from CPU
context, as introduced in:
commit 68cacd29167b ("perf_events: Fix stale ->cgrp pointer in update_cgrp_time_from_cpuctx()")
With this patch, cpuctx->cgrp is always set/clear when installing/removing
the first/last cgroup event in/from the CPU context. With cpuctx->cgrp
correctly set, event_filter_match works as intended when events are
sched in/out.
After the fix, the output is as expected:
$ perf stat -e cycles -I 1000 -a -G /
# time counts unit events
1.004699159 627342882 cycles /
2.007397156 615272690 cycles /
3.010019057 616726074 cycles /
Signed-off-by: David Carrillo-Cisneros <davidcc@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul Turner <pjt@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vegard Nossum <vegard.nossum@gmail.com>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Link: http://lkml.kernel.org/r/1470124092-113192-1-git-send-email-davidcc@google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking fixes from Ingo Molnar:
"Misc fixes: lockstat fix, futex fix on !MMU systems, big endian fix
for qrwlocks and a race fix for pvqspinlocks"
* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
locking/pvqspinlock: Fix a bug in qstat_read()
locking/pvqspinlock: Fix double hash race
locking/qrwlock: Fix write unlock bug on big endian systems
futex: Assume all mappings are private on !MMU systems
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This patch aims to get rid of endianness in queued_write_unlock(). We
want to set __qrwlock->wmode to NULL, however the address is not
&lock->cnts in big endian machine. That causes queued_write_unlock()
write NULL to the wrong field of __qrwlock.
So implement __qrwlock_write_byte() which returns the correct
__qrwlock->wmode address.
Suggested-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Pan Xinhui <xinhui.pan@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Waiman.Long@hpe.com
Cc: arnd@arndb.de
Cc: boqun.feng@gmail.com
Cc: will.deacon@arm.com
Link: http://lkml.kernel.org/r/1468835259-4486-1-git-send-email-xinhui.pan@linux.vnet.ibm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fix from Ingo Molnar:
"A fix for an MSI regression"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
genirq/msi: Make sure PCI MSIs are activated early
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Bharat Kumar Gogada reported issues with the generic MSI code, where the
end-point ended up with garbage in its MSI configuration (both for the vector
and the message).
It turns out that the two MSI paths in the kernel are doing slightly different
things:
generic MSI: disable MSI -> allocate MSI -> enable MSI -> setup EP
PCI MSI: disable MSI -> allocate MSI -> setup EP -> enable MSI
And it turns out that end-points are allowed to latch the content of the MSI
configuration registers as soon as MSIs are enabled. In Bharat's case, the
end-point ends up using whatever was there already, which is not what you
want.
In order to make things converge, we introduce a new MSI domain flag
(MSI_FLAG_ACTIVATE_EARLY) that is unconditionally set for PCI/MSI. When set,
this flag forces the programming of the end-point as soon as the MSIs are
allocated.
A consequence of this is that we have an extra activate in irq_startup, but
that should be without much consequence.
tglx:
- Several people reported a VMWare regression with PCI/MSI-X passthrough. It
turns out that the patch also cures that issue.
- We need to have a look at the MSI disable interrupt path, where we write
the msg to all zeros without disabling MSI in the PCI device. Is that
correct?
Fixes: 52f518a3a7c2 "x86/MSI: Use hierarchical irqdomains to manage MSI interrupts"
Reported-and-tested-by: Bharat Kumar Gogada <bharat.kumar.gogada@xilinx.com>
Reported-and-tested-by: Foster Snowhill <forst@forstwoof.ru>
Reported-by: Matthias Prager <linux@matthiasprager.de>
Reported-by: Jason Taylor <jason.taylor@simplivity.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: linux-pci@vger.kernel.org
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/1468426713-31431-1-git-send-email-marc.zyngier@arm.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Pull NFS client bugfixes from Trond Myklebust:
"Highlights include:
- Stable patch from Olga to fix RPCSEC_GSS upcalls when the same user
needs multiple different security services (e.g. krb5i and krb5p).
- Stable patch to fix a regression introduced by the use of
SO_REUSEPORT, and that prevented the use of multiple different NFS
versions to the same server.
- TCP socket reconnection timer fixes.
- Patch from Neil to disable the use of IPv6 temporary addresses"
* tag 'nfs-for-4.8-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
NFSv4: Cap the transport reconnection timer at 1/2 lease period
NFSv4: Cleanup the setting of the nfs4 lease period
SUNRPC: Limit the reconnect backoff timer to the max RPC message timeout
SUNRPC: Fix reconnection timeouts
NFSv4.2: LAYOUTSTATS may return NFS4ERR_ADMIN/DELEG_REVOKED
SUNRPC: disable the use of IPv6 temporary addresses.
SUNRPC: allow for upcalls for same uid but different gss service
SUNRPC: Fix up socket autodisconnect
SUNRPC: Handle EADDRNOTAVAIL on connection failures
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We don't want to miss a lease period renewal due to the TCP connection
failing to reconnect in a timely fashion. To ensure this doesn't happen,
cap the reconnection timer so that we retry the connection attempt
at least every 1/2 lease period.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
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...and ensure that we propagate it to new transports on the same
client.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Some powerpc fixes for 4.8:
Misc:
- powerpc/vdso: Fix build rules to rebuild vdsos correctly from Nicholas Piggin
- powerpc/ptrace: Fix coredump since ptrace TM changes from Cyril Bur
- powerpc/32: Fix csum_partial_copy_generic() from Christophe Leroy
- cxl: Set psl_fir_cntl to production environment value from Frederic Barrat
- powerpc/eeh: Switch to conventional PCI address output in EEH log from Guilherme G. Piccoli
- cxl: Use fixed width predefined types in data structure. from Philippe Bergheaud
- powerpc/vdso: Add missing include file from Guenter Roeck
- powerpc: Fix unused function warning 'lmb_to_memblock' from Alastair D'Silva
- powerpc/powernv/ioda: Fix TCE invalidate to work in real mode again from Alexey Kardashevskiy
- powerpc/cell: Add missing error code in spufs_mkgang() from Dan Carpenter
- crypto: crc32c-vpmsum - Convert to CPU feature based module autoloading from Anton Blanchard
- powerpc/pasemi: Fix coherent_dma_mask for dma engine from Darren Stevens
Benjamin Herrenschmidt:
- powerpc/32: Fix crash during static key init
- powerpc: Update obsolete comment in setup_32.c about early_init()
- powerpc: Print the kernel load address at the end of prom_init()
- powerpc/pnv/pci: Fix incorrect PE reservation attempt on some 64-bit BARs
- powerpc/xics: Properly set Edge/Level type and enable resend
Mahesh Salgaonkar:
- powerpc/book3s: Fix MCE console messages for unrecoverable MCE.
- powerpc/powernv: Fix MCE handler to avoid trashing CR0/CR1 registers.
- powerpc/powernv: Move IDLE_STATE_ENTER_SEQ macro to cpuidle.h
- powerpc/powernv: Load correct TOC pointer while waking up from winkle.
Andrew Donnellan:
- cxl: Fix sparse warnings
- cxl: Fix NULL dereference in cxl_context_init() on PowerVM guests
Michael Ellerman:
- selftests/powerpc: Specify we expect to build with std=gnu99
- powerpc/Makefile: Use cflags-y/aflags-y for setting endian options
- powerpc/pci: Fix endian bug in fixed PHB numbering"
* tag 'powerpc-4.8-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (26 commits)
selftests/powerpc: Specify we expect to build with std=gnu99
powerpc/vdso: Fix build rules to rebuild vdsos correctly
powerpc/Makefile: Use cflags-y/aflags-y for setting endian options
powerpc/32: Fix crash during static key init
powerpc: Update obsolete comment in setup_32.c about early_init()
powerpc: Print the kernel load address at the end of prom_init()
powerpc/ptrace: Fix coredump since ptrace TM changes
powerpc/32: Fix csum_partial_copy_generic()
cxl: Set psl_fir_cntl to production environment value
powerpc/pnv/pci: Fix incorrect PE reservation attempt on some 64-bit BARs
powerpc/book3s: Fix MCE console messages for unrecoverable MCE.
powerpc/pci: Fix endian bug in fixed PHB numbering
powerpc/eeh: Switch to conventional PCI address output in EEH log
cxl: Fix sparse warnings
cxl: Fix NULL dereference in cxl_context_init() on PowerVM guests
cxl: Use fixed width predefined types in data structure.
powerpc/vdso: Add missing include file
powerpc: Fix unused function warning 'lmb_to_memblock'
powerpc/powernv: Fix MCE handler to avoid trashing CR0/CR1 registers.
powerpc/powernv: Move IDLE_STATE_ENTER_SEQ macro to cpuidle.h
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This patch fixes a regression introduced by commit b810253bd934 ("cxl:
Add mechanism for delivering AFU driver specific events").
It changes the type u8 to __u8 in the uapi header cxl.h, because the
former is a kernel internal type, and may not be defined in userland
build environments, in particular when cross-compiling libcxl on x86_64
linux machines (RHEL6.7 and Ubuntu 16.04).
This patch also changes the size of the field data_size, and makes it
constant, to support 32-bit userland applications running on big-endian
ppc64 kernels transparently.
mpe: This is an ABI change, however the ABI was only added during the
4.8 merge window so has never been part of a released kernel - therefore
we give ourselves permission to change it.
Fixes: b810253bd934 ("cxl: Add mechanism for delivering AFU driver specific events")
Signed-off-by: Philippe Bergheaud <felix@linux.vnet.ibm.com>
Reviewed-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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Pull virtio/vhost fixes and cleanups from Michael Tsirkin:
"Misc fixes and cleanups all over the place"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
virtio/s390: deprecate old transport
virtio/s390: keep early_put_chars
virtio_blk: Fix a slient kernel panic
virtio-vsock: fix include guard typo
vhost/vsock: fix vhost virtio_vsock_pkt use-after-free
9p/trans_virtio: use kvfree() for iov_iter_get_pages_alloc()
virtio: fix error handling for debug builds
virtio: fix memory leak in virtqueue_add()
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