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Merge the rcar stable branch that is being shared with the arm-soc tree.
Signed-off-by: Dave Airlie <airlied@redhat.com>
* pfdo/drm-rcar-for-v3.12: (220 commits)
drm/rcar-du: Add FBDEV emulation support
drm/rcar-du: Add internal LVDS encoder support
drm/rcar-du: Configure RGB output routing to DPAD0
drm/rcar-du: Rework output routing support
drm/rcar-du: Add support for DEFR8 register
drm/rcar-du: Add support for multiple groups
drm/rcar-du: Fix buffer pitch alignment for R8A7790 DU
drm/rcar-du: Add support for the R8A7790 DU
drm/rcar-du: Move output routing configuration to group
drm/rcar-du: Remove register definitions for the second channel
drm/rcar-du: Use dynamic number of CRTCs instead of CRTCs array size
drm/rcar-du: Introduce CRTCs groups
drm/rcar-du: Rename rcar_du_plane_(init|register) to rcar_du_planes_*
drm/rcar-du: Create rcar_du_planes structure
drm/rcar-du: Rename platform data fields to match what they describe
drm/rcar-du: Merge LVDS and VGA encoder code
drm/rcar-du: Split VGA encoder and connector
drm/rcar-du: Split LVDS encoder and connector
drm/rcar-du: Clarify comment regarding plane Y source coordinate
drm/rcar-du: Support per-CRTC clock and IRQ
...
Conflicts:
drivers/gpu/drm/i915/i915_dma.c
drivers/gpu/drm/i915/intel_pm.c
drivers/gpu/drm/qxl/qxl_release.c
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The recent addition of lockdep support to reservations and their subsequent
use by TTM showed up a number of potential problems with the way qxl was using
TTM objects.
a) it was allocating objects, and reserving them later without validating
underneath the reservation, which meant in extreme conditions the objects could
be evicted before the reservation ever used them.
b) it was reserving objects straight after allocating them, but with no
ability to back off should the reservations fail. It now allocates the necessary
objects then does a complete reservation pass on them to avoid deadlocks.
c) it had two lists per release tracking objects, unnecessary complicating
the reservation process.
This patch removes the dual object tracking, adds reservations ticket support
to the release and fence object handling. It then ports the internal fb
drawing code and the userspace facing ioctl to use the new interfaces properly,
along with cleanup up the error path handling in some codepaths.
Signed-off-by: Dave Airlie <airlied@redhat.com>
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In order to fix an issue with reservations we need to create the releases
as pre-pinned objects, this changes the placement interface and bo creation
interface to allow creating pinned objects to save nested reservations later.
This is just a stepping stone to main fix which follows to actually fix how
qxl deals with reservations.
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Use the new vma-manager infrastructure. This doesn't change any
implementation details as the vma-offset-manager is nearly copied 1-to-1
from TTM.
The vm_lock is moved into the offset manager so we can drop it from TTM.
During lookup, we use the vma locking helpers to take a reference to the
found object.
In all other scenarios, locking stays the same as before. We always
guarantee that drm_vma_offset_remove() is called only during destruction.
Hence, helpers like drm_vma_node_offset_addr() are always safe as long as
the node has a valid offset.
This also drops the addr_space_offset member as it is a copy of vm_start
in vma_node objects. Use the accessor functions instead.
v4:
- remove vm_lock
- use drm_vma_offset_lock_lookup() to protect lookup (instead of vm_lock)
Cc: Dave Airlie <airlied@redhat.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Cc: Martin Peres <martin.peres@labri.fr>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@gmail.com>
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Signed-off-by: Dave Airlie <airlied@redhat.com>
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/usr/lib/gcc/x86_64-linux-gnu/4.7/include/stddef.h:414:9: sparse: preprocessor token offsetof redefined
include/linux/stddef.h:17:9: this was the original definition
>> drivers/gpu/drm/qxl/qxl_drv.c:49:5: sparse: symbol 'qxl_modeset' was not declared. Should it be static?
Reported-by: kbuild test robot.
Signed-off-by: Dave Airlie <airlied@redhat.com>
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QXL is a paravirtual graphics device used by the Spice virtual desktop
interface.
The drivers uses GEM and TTM to manage memory, the qxl hw fencing however
is quite different than normal TTM expects, we have to keep track of a number
of non-linear fence ids per bo that we need to have released by the hardware.
The releases are freed from a workqueue that wakes up and processes the
release ring.
releases are suballocated from a BO, there are 3 release categories, drawables,
surfaces and cursor cmds. The hw also has 3 rings for commands, cursor and release handling.
The hardware also have a surface id tracking mechnaism and the driver encapsulates it completely inside the kernel, userspace never sees the actual hw surface
ids.
This requires a newer version of the QXL userspace driver, so shouldn't be
enabled until that has been placed into your distro of choice.
Authors: Dave Airlie, Alon Levy
v1.1: fixup some issues in the ioctl interface with padding
v1.2: add module device table
v1.3: fix nomodeset, fbcon leak, dumb bo create, release ring irq,
don't try flush release ring (broken hw), fix -modesetting.
v1.4: fbcon cpu usage reduction + suitable accel flags.
Signed-off-by: Alon Levy <alevy@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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