Dynamic context pinning for LRCs introduced a leak in legacy mode.
Reinstate context unreference in i915_gem_free_request for legacy contexts.
Leak reported by i-g-t/drv_module_reload fixed by this patch.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=86507
Signed-off-by: Thomas Daniel <thomas.daniel@intel.com>
Reviewed-by: John Harrison<John.C.Harrison@Intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Updates in forcewake range for Render/Media/Common
power wells for Gen9.
Signed-off-by: Akash Goel <akash.goel@intel.com>
Signed-off-by: Zhe Wang <zhe1.wang@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Before testing if the panel VDD is enabled on eDP cancel any pending
disable worker. This makes sure the worker will be triggered with a
delay from the last time edp_panel_vdd_schedule_off() is called, not
the first time. This avoids unnecessary overhead.
https://bugs.freedesktop.org/show_bug.cgi?id=86201
v2: use cancel_delayed_work() instead of cancel_delayed_work_sync()
as the pps_mutexes will provide the required serialization with
edp_panel_vdd_work() while the sync variant may deadlock. Suggested
by Ville Syrjälä <ville.syrjala@linux.intel.com>.
Made commit message a bit clearer.
Signed-off-by: Egbert Eich <eich@suse.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The crc code doesn't handle anything really that could drop the
register state (by design so that we have less complexity). Which
means userspace may only start crc capture once the pipe is fully set
up.
With an i-g-t patch this will be the case, but there's still the
problem that this results in obscure unclaimed register write
failures. Which is a pain to debug.
So instead make sure we don't have the basic unclaimed register write
failure by grabbing runtime pm references. And reject completely
invalid requests with -EIO. This is still racy of course, but for a
test library we don't really care - if userspace shuts down the pipe
right afterwards the entire setup will be lost anyway.
v2: Put instead of get, spotted by Damien. Also explain the runtime pm
dance.
v3: There's really no need for rpm get/put since power_is_enabled only
checks software state (Damien).
References: https://bugs.freedesktop.org/show_bug.cgi?id=86092
Cc: Damien Lespiau <damien.lespiau@intel.com> (v2)
Tested-by: lu hua <huax.lu@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
The GPU reset also resets the display on gen3/4. The g33 docs say we
should disable all planes before flipping the reset switch. Just
disable all the crtcs instead. That seems a nicer thing to do anyway.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
On gen4 and earlier the GPU reset also resets the display, so we should
protect against concurrent modeset operations. Grab all the modeset locks
around the entire GPU reset dance, remebering first ti dislogde any
pending page flip to make sure we don't deadlock. Any pageflip coming
in between these two steps should fail anyway due to reset_in_progress,
so this should be safe.
This fixes a lot of failed asserts in the modeset code when there's a
modeset racing with the reset. Naturally the asserts aren't happy when
the expected state has disappeared.
v2: Drop UMS checks, complete pending flips after the reset (Daniel)
Cc: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
g33 seems to sit somewhere between the 915/945/965 style and the
g4x style. The bits look like g4x, but we still need to do a full
reset including display.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
915/945 have the same reset registers as 965, so share the code.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
On pre-ctg GPU reset also resets the display hardware. Force a mode
restore after the GPU reset, and also re-init clock gating.
v2: Use intel_modeset_init_hw() instead of intel_init_clock_gating()
in case more relevant stuff gets added there at some point
Restore interrupts after the reset as well
Tested-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
On pre-ctg the reset bit directly controls the reset signal. We must
assert it for >=20usec and then deassert it. Bit 1 is a RO status bit
which should also go down when the reset is no longer asserted.
Tested-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
There's quite a few bug reports with error states where the error
reasons makes just about no sense at all. Like dying on tlbs for a
display plane that's not even there. Also users don't really report a
lot of bad side effects generally, just the error states.
Furthermore we don't even enable these interrupts any more on gen5+
(though the handling code is still there). So this mostly concerns old
platforms.
Given all that lets make our lives a bit easier and stop capturing
error states, in the hopes that we can just ignore them. In case
that's not true and the gpu indeed dies the hangcheck should
eventually kick in. And I've left some debug log in to make this case
noticeble. Referenced bug is just an example.
v2: Fix missing \n Jani spotted.
References: https://bugs.freedesktop.org/show_bug.cgi?id=82095
References: https://bugs.freedesktop.org/show_bug.cgi?id=85944
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The problem here is that SNA pins batchbuffers to etch out a bit more
performance. Iirc it started out as a w/a for i830M (which we've
implemented in the kernel since a long time already). The problem is
that the pin ioctl wasn't added in
commit d23db88c3a
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Fri May 23 08:48:08 2014 +0200
drm/i915: Prevent negative relocation deltas from wrapping
Fix this by simply disallowing pinning from userspace so that the
kernel is in full control of batch placement again. Especially since
distros are moving towards running X as non-root, so most users won't
even be able to see any benefits.
UMS support is dead now, but we need this minimal patch for
backporting. Follow-up patch will remove the pin ioctl code
completely.
Note to backporters: You must have both
commit b45305fce5
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Mon Dec 17 16:21:27 2012 +0100
drm/i915: Implement workaround for broken CS tlb on i830/845
which laned in 3.8 and
commit c4d69da167
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Mon Sep 8 14:25:41 2014 +0100
drm/i915: Evict CS TLBs between batches
which is also marked cc: stable. Otherwise this could introduce a
regression by disabling the userspace w/a without the kernel w/a being
fully functional on i830/45.
References: https://bugs.freedesktop.org/show_bug.cgi?id=76554#c116
Cc: stable@vger.kernel.org # requires c4d69da167 and v3.8
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
In all likelihood we will do a few hundred errnoneous register
operations if we do a single invalid register access whilst the device
is suspended. As each instance causes a WARN, this floods the system
logs and can make the system unresponsive.
The warning was first introduced in
commit b2ec142cb0
Author: Paulo Zanoni <paulo.r.zanoni@intel.com>
Date: Fri Feb 21 13:52:25 2014 -0300
drm/i915: call assert_device_not_suspended at gen6_force_wake_work
and despite the claims the WARN is still encountered in the wild today.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
CHV infoframes were not being enabled.
Signed-off-by: Clint Taylor <clinton.a.taylor@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
When doing a nop modeset we currently leave crtc->new_config point at
the already freed temporary pipe_config. That will anger the sanity
checks in intel_modeset_update_state() when the nop modeset gets
followed by a GPU reset on gen3/4 where the display block gets fully
reinitialized during the reset.
So leave crtc->new_config alone until we know a modeset is actually
required.
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The DRM connector's encoder pointer is managed internally by the DRM
core and set to NULL when the DRM connector is disconnected from the
CRTC it was attached to. This results in a NULL pointer dereference in
the HDMI connector functions when trying to call the associated slave
encoder's operations.
Fix this by retrieving the slave encoder pointer from the R-Car
connector structure instead of the DRM connector structure.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
drm-intel-next-2014-11-21:
- infoframe tracking (for fastboot) from Jesse
- start of the dri1/ums support removal
- vlv forcewake timeout fixes (Imre)
- bunch of patches to polish the rps code (Imre) and improve it on bdw (Tom
O'Rourke)
- on-demand pinning for execlist contexts
- vlv/chv backlight improvements (Ville)
- gen8+ render ctx w/a work from various people
- skl edp programming (Satheeshakrishna et al.)
- psr docbook (Rodrigo)
- piles of little fixes and improvements all over, as usual
* tag 'drm-intel-next-2014-11-21-fixed' of git://anongit.freedesktop.org/drm-intel: (117 commits)
drm/i915: Don't pin LRC in GGTT when dumping in debugfs
drm/i915: Update DRIVER_DATE to 20141121
drm/i915/g4x: fix g4x infoframe readout
drm/i915: Only call mod_timer() if not already pending
drm/i915: Don't rely upon encoder->type for infoframe hw state readout
drm/i915: remove the IRQs enabled WARN from intel_disable_gt_powersave
drm/i915: Use ggtt error obj capture helper for gen8 semaphores
drm/i915: vlv: increase timeout when setting idle GPU freq
drm/i915: vlv: fix cdclk setting during modeset while suspended
drm/i915: Dump hdmi pipe_config state
drm/i915: Gen9 shadowed registers
drm/i915/skl: Gen9 multi-engine forcewake
drm/i915: Read power well status before other registers for drpc info
drm/i915: Pin tiled objects for L-shaped configs
drm/i915: Update ring freq for full gpu freq range
drm/i915: change initial rps frequency for gen8
drm/i915: Keep min freq above floor on HSW/BDW
drm/i915: Use efficient frequency for HSW/BDW
drm/i915: Can i915_gem_init_ioctl
drm/i915: Sanitize ->lastclose
...
LRC object does not need to be mapped into the GGTT when dumping. A side-effect
of this patch is that a compiler warning goes away (not checking return value
of i915_gem_obj_ggtt_pin).
v2: Broke out individual context dumping into a new function as the indentation
was getting a bit crazy. Added notification of contexts with no gem object for
debugging purposes. Removed unnecessary pin_pages and unpin_pages, replaced
with explicit get_pages for the context object as there may be no backing store
allocated at this time (Comment for get_pages says "Ensure that the associated
pages are gathered from the backing storage and pinned into our object").
Improved error checking - get_pages and get_page are checked for failure.
Signed-off-by: Thomas Daniel <thomas.daniel@intel.com>
[danvet: Align paramter continuation lines properly. Also add some
braces to the nested loops again for readability.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
- Tegra K1 voltage support, and coherency improvements
- GM204 support (modesetting, still waiting on NVIDIA for signed fw to
proceed further), and a lot of bios/i2c/devinit adjustments needed to
support it
- GT21x memory reclocking work
- Various other bits and pieces, most of which are prep-work for a
couple of bigger projects I didn't get finished in time
* 'linux-3.19' of git://anongit.freedesktop.org/git/nouveau/linux-2.6: (73 commits)
drm/nv50/kms: drop requirement that framebuffer bos be contig up-front
drm/nv50/kms: directly use cursor image from userspace buffer
drm/nouveau/kms: when pinning display-related buffers, force contig vram
drm/nouveau: teach nouveau_bo_pin() how to force a contig vram allocation
drm/nouveau/volt: add support for GK20A
drm/nouveau/platform: add GPU speedo information to nouveau platform
drm/nouveau/volt: allow non-bios voltage scaling
drm/gf100-/gr: return non-fatal error code when fw not present
drm/nouveau/devinit: bump priv ring timeouts before executing scripts
drm/nouveau/bios: translate ramcfg strap through M0203
drm/nouveau/fb: make use of M0203 routines for ram type determination
drm/nouveau/bios: add parsing of BIT M(v2) +0x03 table
drm/nouveau/core: allow vbios parsing without knowing chipset type
drm/nouveau/lib: add null backend
drm/nouveau/device: store revision
drm/nouveau/core: add some forgotten subdevs to disable mask
drm/gk20a/clk: fix max VCO value
drm/nouveau: we need pin_refcnt for nouveau_bo_placement_set()
drm/nv50-/kms: add some evo tracing ability for debugging
drm/nv50/kms: use sclass() instead of trial-and-error
...
Preparation for transition to planes, which use framebuffers for the
cursor image. We've always done copies from the userspace buffer up
until now for legacy reasons, there's no good reason to do so on the
chipsets this code covers.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
We have the ability to move buffers around in the kernel if necessary,
and should probably use it rather than failing if userspace passes us
a non-contig buffer for a plane.
The NOUVEAU_GEM_TILE_NONCONTIG flag from userspace will become a mere
initial placement hint once all the relevant paths have been updated.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
The voltage value are calculated by the hardware characterized
result.
Signed-off-by: Vince Hsu <vinceh@nvidia.com>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Martin Peres <martin.peres@free.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
For GK20A we need the GPU speedo value to calculate voltage levels.
Signed-off-by: Vince Hsu <vinceh@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Move the vbios parsing out of init() and call it conditionally if the
platform has a vbios. Non-vbios platforms can use the ctor() to init the
data structures.
Signed-off-by: Vince Hsu <vinceh@nvidia.com>
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Martin Peres <martin.peres@free.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
A machine has been spotted where the ramcfg strap is "8", and the ramcfg
xlat table goes 0-7,0-7, resulting in us selecting config 0 for memory
items. On this particular system, config "8" is available and supposed
to be used. It appears that starting from GT21x (where Mv2 appears),
we're supposed to use the value in this table instead.
One concern here is that not all the places we currently use ramcfg xlat
are supposed to be treated the same now. The strap xlat table wasn't
removed from the vbios either, presumably for some kind of good reason.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
We only support one kind of matching here (ramcfg strap), but it appears
alternate methods are possible. I wrote a tool to scan our vbios repo
for other types, but did not see any used. Hopefully this means there
aren't any in the wild that will now break.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
For some reason max_vco was set to a lower value that it can support,
which prevented some clock states to be applied. Fix this by setting it
to the same value as downstream.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
On architectures for which access to GPU memory is non-coherent,
caches need to be flushed and invalidated explicitly when BO control
changes between CPU and GPU.
This patch adds buffer synchronization functions which invokes the
correct API (PCI or DMA) to ensure synchronization is effective.
Based on the TTM DMA cache helper patches by Lucas Stach.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Specify TTM_PL_FLAG_UNCACHED when allocating GPFIFOs and fences to
allow them to be safely accessed by the kernel without being synced
on non-coherent architectures.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Allow nouveau_bo_new() to recognize the TTM_PL_FLAG_UNCACHED flag, which
means that we want the allocated BO to be perfectly coherent between the
CPU and GPU. This is useful on non-coherent architectures for which we
do not want to manually sync some rarely-accessed buffers: typically,
fences and pushbuffers.
A TTM BO allocated with the TTM_PL_FLAG_UNCACHED on a non-coherent
architecture will be populated using the DMA API, and accesses to it
performed using the coherent mapping performed by dma_alloc_coherent().
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Add a function allowing us to know whether a device is CPU-coherent,
i.e. accesses performed by the CPU on GPU-mapped buffers will
be immediately visible on the GPU side and vice-versa.
For now, a device is considered to be coherent if it uses the PCI bus on
a non-ARM architecture.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Pinned BOs are supposed to remain in their current location until
unpinned. Display a warning for the supposedly-erroneous case where we
are trying to move such objects.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Probably missing something here, doesn't make a lot of sense to write
or+link data into a register whose offset is calculated by the same
or+link info..
This is the all I've witnessed the binary driver and vbios doing so
far, so it'll do.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
The binary driver has been doing this since GF119, and we've somehow
gotten away with it. But, TMDS that hasn't been initialised already
by the x86 vbios code is distorted without it on GM204.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Logging at trace level, rather than as en error, as it seems conceivable
that failure could be normal under certain circumstances (new bios,
older sink that doesn't support a particular DPCD address)
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Starting from GM204, certain registers are no longer accessible by the host
(or unsigned PMU firmware).
This commit implements devinit on PMU, using a signed microcode image, and
devinit data, from the VBIOS.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
The field at +0x2 is technically processor specific, though I don't know
that it's ever mattered in practice (yet).
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
We're about to need to be able to fetch additional chunks of data beyond
the primary bios image, which makes fetching a lot more complicated.
This splits out the verious shadowing routines to be nothing more than
very dumb "fetch this much data from this offset" routines, and leaves
the logic of what and how much to fetch in common code.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
add gpio bitbanging i2c adapter on LPC device of atom e6xx
gpu chipset to access lvds EDID
tested on SECO QuadMo747-E6xx-EXTREME Qseven platform
Reviewed-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Signed-off-by: Jan Safrata <jan.nikitenko@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
So here's a pile of atomic fixes and improvements from various people.
There's still more patches in-flight, so I think I'll keep collecting them
in a separate branch.
* tag 'topic/core-stuff-2014-11-28' of git://anongit.freedesktop.org/drm-intel:
drm/atomic: clear plane's CRTC and FB when shutting down
drm: Handle atomic state properly in kms getfoo ioctl
drm: use mode_object_find helpers
drm: fix indentation
drm/msm: switch to atomic-helpers iterator macros
drm/atomic: add plane iterator macros
drm/atomic: track bitmask of planes attached to crtc
drm: Free atomic state during cleanup
drm: Make drm_atomic.h standalone includible
drm: Make drm_atomic_helper.h standalone includible
drm/plane: Add missing kerneldoc
drm/plane: Pass old state to ->atomic_update()
drm/atomic_helper: Cope with plane->crtc == NULL in disable helper
drm/atomic: Drop per-plane locking TODO
drm/atomic-helper: Skip vblank waits for unchanged fbs
drm: Document that drm_dev_alloc doesn't need a parent
Pull drm fixes from Dave Airlie:
"Two i915 regressions and one dual-gpu laptop radeon fix"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/radeon: report disconnected for LVDS/eDP with PX if ddc fails
drm/i915: Cancel vdd off work before suspend
drm/i915: Ignore SURFLIVE and flip counter when the GPU gets reset
Two regression fixes from Ville.
* tag 'drm-intel-fixes-2014-11-27' of git://anongit.freedesktop.org/drm-intel:
drm/i915: Cancel vdd off work before suspend
drm/i915: Ignore SURFLIVE and flip counter when the GPU gets reset
Otherwise we'd still end up w/ the plane attached to the CRTC, and
seemingly active, but without an FB. Which ends up going *boom*
in the drivers.
Slightly modified version of Daniel's irc suggestion.
Note that the big problem isn't drivers going *boom* here (since we
already have the situation of planes being left enabled when the crtc
goes down). The real issue is that the core assumes the primary plane
always goes down when calling ->set_config with a NULL mode. Ignoring
that assumption leads to the legacy state pointers plane->fb/crtc
getting out of sync with atomic, and that then leads to the subsequent
*boom* all over the place.
CC: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Rob Clark <robdclark@gmail.com>
[danvet: Drop my opinion of what's going sidewides here into the
commit message as a note.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
So the problem with async commit (especially async modeset commit) is
that the legacy pointers only get updated after the point of no
return, in the async part of the modeset sequence. At least as
implemented by the current helper functions. This is done in the
set_routing_links function in drm_atomic_helper.c.
Which also means that access isn't protected by locks but only
coordinated by synchronizing with async workers. No problem thus far,
until we lock at the getconnector/encoder ioctls.
So fix this up by adding special cases for atomic drivers: For those
we need to look at state objects. Unfortunately digging out the
correct encoder->crtc link is a bit of work, so wrap this up in a
helper function.
Moving the assignments of connector->encoder and encoder->crtc earlier
isn't a good idea because the point of the atomic helpers is that we
stage the state updates. That way the disable functions can still
inspect the links and rely upon them.
v2: Extract full encoder->crtc lookup into helper (Rob).
v3: Extract drm_connector_get_encoder too since - we need to always
return state->best_encoder when there is a state otherwise we might
return stale data if there's a pending async disable (and chase
unlocked pointers, too). Same issue with encoder_get_crtc but there
it's a bit more tricky to handle.
Cc: Rob Clark <robdclark@gmail.com>
Cc: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Lightly-Tested-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>